The film opens with a sudden, brutal attack on a remote African farming village: a huge one-eyed cyclops smashes huts, seizes and eats villagers, and leaves a landscape of destruction. The scene cuts away from that carnage to a flashback of Jack Brooks as a child on a summer camping trip in a dense North American forest. A hulking forest troll bursts from the trees, mauls the campsite and devours Jack's family before his eyes. The slaughter leaves Jack traumatized; as he grows older he develops violent anger outbursts and struggles to control his temper. He attends periodic sessions with Dr. Silverstein, a clinical therapist, but the visits do not resolve his rage. Jack maintains a relationship with his girlfriend Eve, but their connection frays under the weight of his volatility and frequent lateness.

As a young adult Jack earns his living as a plumber and, at night, he sits in remedial science class taught by the eccentric Professor Crowley. Crowley's evening demonstrations fascinate the students even as Jack habitually arrives late. During one lecture Crowley performs a chemistry demonstration using pieces of sodium metal and water; the experiment produces a violent, hissing flash and a small explosion that startles the class and leaves Jack peculiarly intrigued by the properties of the metal. After the session Crowley mentions that he has just moved into an old house and asks Jack, who does odd plumbing jobs on the side, to unclog the pipes in his new residence.

Jack goes to Crowley's property to clear the plumbing and finds a strange, oppressive atmosphere. While inspecting the yard he discovers a recently disturbed patch of earth and, under the soil, an unmarked grave. He exposes human skeletal remains and, among them, a mass of fleshy tissue that pulses with a dark, wet heartbeat. The pulsing organ emits a black, oily substance and seems to be alive on its own. Jack recoils and staggers away injured as he tries to process what he has unearthed.

After Jack brings the discovery to Crowley's attention, the professor rapidly deteriorates. The heart influences Crowley: he becomes feverish, fixes his gaze on the ground and obsessively digs with his bare hands, prying up a rusted metal box packed with more human remains. In rapid succession Crowley swallows a piece of that dark matter; the organ forces its way past his throat and somehow embeds itself inside him. The possession is slow and physical. Crowley's skin distends, his torso balloons, and thick, rubbery tentacles erupt from his back and shoulders. His mouth stretches into a cavernous maw and the appendages use him like a living trap to seize and drag victims headfirst. The box of bones and the black heart act as a parasite, reanimating the bodies around it and turning the living into violent, unthinking killers.

Howard, an elder who runs the local hardware store, sees Jack in his shop and warns him off Crowley's property. Howard speaks of a curse and advises Jack to keep his distance, citing a string of unexplained incidents surrounding the house. Jack does not heed the warning and instead continues to attend Crowley's class, where the infection begins to spread. One night in the high school laboratory, during a session, Crowley becomes unhinged. The professor's transformation accelerates in front of the students: tentacles burst out from his back, slime drips from his enlarged mouth, and his voice distorts into a low, gurgling roar. The appendages fling across the classroom, snatching students and yanking them toward Crowley's maw.

Chaos erupts. Crowley drags several students into his gullet; the creatures he feeds on do not die cleanly but instead are transformed, crawling free only to become mindless, violent thralls under his command. One student is pulled from his seat and sucked into the expanding orifice; his skin sloughs and he returns moments later with a vacant stare and hostile intent, attacking classmates on Crowley's orders. The tentacles latch onto another pupil and rip them through a lab table, tearing limbs and ripping flesh in front of the others. A third young person is seized, swallowed up to the shoulders and then spat back out, twitching with inhuman energy before lurching toward the exit to spread the infection further.

Amid the pandemonium Jack frantically helps Eve, who is present, and together they barricade themselves inside a storage room at the rear of the classroom. Behind the door they find one of their peers, wounded and semi-conscious; Jack and Eve strip bloodied lab equipment from the injured student and stop severe bleeding before he lapses into unconsciousness. Outside their refuge the classroom falls into a tableau of carnage: desks overturned; blood pooled across the tile floor; several students incapacitated, many others dragged away to be devoured or transformed. Crowley patrols the room like a grotesque arbiter, his tentacles snaking under doors and through shattered windows to pull terrified people from the hallways.

In the brief silence that follows an improvised radio in the supply closet plays an old, tinny pop song that triggers a flashback for Jack. The music transports him back to the campsite where the troll annihilated his family; he hears the same melody that had been playing in his memory on that night. The recollection of the scream, the smell of smoke, and the sight of a life extinguished stokes a focused, cold fury in Jack. For a moment he is paralyzed by the memory, then he snaps into action. Fearing for Eve's safety, he forces her to remain hidden and tells her to stay behind while he confronts the threat.

Jack exits the room alone and moves through the ruined school with tools he can find: an industrial wrench, a heavy plunger, lengths of pipe, and a fire axe from the janitor's closet. He first encounters two corrupted classmates who come at him with wild, animalistic aggression. Jack fights them off using his plumbing equipment. At one point he swings a metal pipe, striking a thrall across the jaw and sending it backward into a row of lab cabinets; the impact cracks the creature's skull and blood sprays the tiles. He ups the force of his blows and uses a plunger shaft to lever open a gutted locker, then snaps a thick crescent wrench over an assailant's neck, breaking it and stopping its movement. He dispatches a second thrall by levering it off balance and stabbing it with a rusted screwdriver until it stops twitching.

Jack then confronts a third attacker who proves more disturbing: this thrall is a warped version of a familiar face from class, someone Jack and Eve know by sight. The altered student moves with jerky, frantic motions and lashes with a sharpened piece of metal. Jack dodges and parries, smashing a length of conduit into the creature's torso and then kneeling on its chest to apply a crushing blow. The thrall emits gurgling sounds and then goes limp. These confrontations leave Jack blood-splattered and breathing hard, but they do not stop the advance of the monster inside Crowley.

Jack pushes deeper into the room where Crowley stands like a living monument to the infection. The professor towers over the bodies of students he has consumed, a bulbous, slavering form with multiple thick tentacles curling outward like the arms of a cephalopod. A long, black heart pulses visibly within his enlarged belly, beating in time with the sucking noises that echo from his throat. Crowley bellows and flings a tentacle across the floor; it snaps a Chemistry instructor in half at the waist and reels him in, slinging bits of clothing and flesh into its mouth. A student at the doorway is seized, pulled into the cavernous maw and dragged screaming out of sight. The tentacles are capable both of crushing bone and of swallowing victims whole; those taken into the maw either disappear into the darkness or are regurgitated as hollow-eyed thralls.

Remembering the sodium experiment from Crowley's earlier lecture, Jack recalls the reactive nature of metallic sodium with water and how violently it can combust. He locates a glass jar from Crowley's demonstration table containing pieces of sodium metal preserved under oil. Jack opens the jar, pockets the metal and prepares to use it as a weapon. Crowley surges forward, a tentacle snapping toward Jack's shoulder. Jack ducks under the appendage, runs to the professor and hurls the sodium into Crowley's gaping mouth just as the tentacles attempt to close around him. The sodium makes instant contact with the moisture inside Crowley; the chemical reaction produces a blinding, roaring eruption. An enormous fireball explodes from the professor's face, the blast tearing off his upper skull, detaching the head from the swollen torso and shattering the nearby windows. The decapitated head falls to the linoleum, but the professor's lower body continues to writhe, tentacles flailing and muscles spasming as the parasitic heart keeps pumping within his abdomen.

Crowley is not yet dead. The black organ remains lodged in the corpse and continues to thrash, radiating a dark fluid. Jack steps forward with the fire axe in both hands. He swings down repeatedly at the exposed, still-beating heart lodged in the creature's midsection. The axe bites into flesh and the black organ convulses, spewing a viscous, tar-like fluid. Jack strikes again and again, hacking at the mass until the heart finally splits open and stops pulsing. The torsion of the final blow causes the corpse to convulse one last time and then still. The tentacles lengthen briefly, flop to the floor and cease to move.

In the aftermath Jack pushes through the ruined room to ensure the threat has ended. Blood and black sludge coat the floor. Several students lie mangled, some dead where they fell, others unconscious. He checks the pupils he had helped barricade and finds Eve and the injured classmate alive but shaken; Kristy, a fellow student who had been pinned under a bench, crawls out and breathes in fearfully. EMTs and police begin to stream in at the scene; within hours paramedics are working over the wounded and officers are cataloguing the gruesome tableau. Authorities remove the severed head of Professor Crowley and collect the remains for examination. The black heart, now sliced and destroyed by Jack's axe, is bagged and taken as evidence.

The deaths tally in the immediate crisis: several students and staff present in the lab are killed outright by Crowley's actions--torn apart by tentacles, swallowed and dismembered, or struck down as they become thralls. Specific victims include the Chemistry instructor who is bisected and pulled into the maw, multiple unnamed students who are dragged into Crowley's mouth and either consumed or returned as killing thralls, and the thralls who are later killed by Jack during his push to confront the professor. Professor Crowley himself dies of horrendous injuries: his head is blown off by the sodium explosion and his parasitic heart is destroyed by Jack's axe. The film depicts these deaths in graphic detail, showing the methods of attack--tentacle ripping, consumption by a cavernous maw, explosive decapitation and blunt-force destruction of the parasite.

After the carnage subsides Jack receives a mixture of reactions. Some surviving classmates express gratitude for his actions, and a few respond with admiration and relief. Kristy, the young woman he helped rescue, shares a brief but intense kiss with Jack in the school hallway amidst the flashing lights of emergency vehicles and the rumble of police radios. Some other students regard Jack with a new respect; he has saved lives and stopped the immediate threat. Eve, however, reacts differently. She listens to the aftermath and decides she cannot continue the relationship. She leaves Jack, telling him she cannot live with the constant danger and emotional fallout his life draws in. Jack accepts her decision without argument.

In the closing sequence Jack returns to the forest of his youth. He walks the path where his family's campsite once stood. He stands at the old cleared space and stares into the trees where, years earlier, the troll destroyed his family. Jack vows, its cadence held in his expression rather than spoken dialogue, to hunt the creatures that prey on people. He straps tools and weapons to his shoulders and steps into the dense stands of trees. The final images show him moving away from the campsite toward the deeper woods and, in a montage-like cut, a distant scene of the cyclops-infested African village from the opening appears as a place he may next confront. The film ends with Jack walking resolutely into the forest, setting him on a path as a hunter who seeks out monsters, leaving behind the ruined classroom and the lives he could not save but bearing the resolve to fight future threats. The last frame shows Jack's silhouette vanishing among the trunks while sirens fade in the distance, signaling both an end to that night's horror and the beginning of his pursuit of other monstrous predators.

The ending of the 2025 movie Jack Brooks: Monster Slayer shows Jack confronting and defeating the monstrous Professor Crowley, who has transformed into a tentacled creature converting students into zombies. After a fierce battle, Jack uses sodium to blow up the monster, finishes it off, rescues survivors, and then sets off on a journey to hunt monsters worldwide, avenging his family.

In the final sequence of Jack Brooks: Monster Slayer, the story unfolds as follows:

Jack Brooks, Eve, and another female student hide in a classroom while the possessed Professor Crowley, now a monstrous figure with tentacles, chases down students in the corridors. One demon enters the classroom and devours the other girl, leaving only Jack and Eve alive.

Jack and Eve manage to escape to a car, but Jack decides to leave Eve behind and return to fight the monsters alone. Armed only with a pipe, Jack re-enters the school building, where he battles two former students who have been transformed into monsters. After defeating them, he confronts the large, rubbery, tentacled Professor Crowley, who is still converting people into zombie-like minions.

Jack uses a chemical reaction involving sodium to cause an explosion that severely injures the monster. Despite the explosion, the creature is not dead, so Jack finishes it off in close combat. After the monster is defeated, Jack rescues some survivors trapped in the building. A woman he is attracted to kisses him, marking a moment of personal connection after the chaos.

The film closes with Jack reflecting that he feels better after killing monsters. Motivated by this, he decides to pursue the monster that killed his family years ago. The final scenes show Jack traveling the world, continuing his mission to slay monsters everywhere, setting up the possibility of further adventures.

Fate of main characters at the end:

• Jack Brooks: Victorious monster slayer, alive and ready to continue hunting monsters globally.
• Professor Crowley: Dead, after being defeated in his monstrous form.
• Eve: Survives the initial escape but is left behind by Jack when he returns to fight; her ultimate fate is not explicitly detailed at the end.
• Other students: Some are killed or converted into monsters; a few survivors are rescued by Jack.

This detailed ending sequence highlights Jack's transformation from a troubled man with anger issues into a determined monster slayer, culminating in a climactic battle that resolves the immediate threat but opens the door for ongoing conflict.

Yes, several characters die in the 2025 movie Jack Brooks: Monster Slayer. Here are the key deaths and their circumstances:

• Jack Brooks' family (sister, mother, and father): They are attacked and killed by a forest troll during a camping trip when Jack is a child. Jack witnesses this traumatic event but manages to escape by running and hiding. This incident is the catalyst for Jack's anger issues and his later monster-slaying mission.

• Professor Crowley: Crowley becomes possessed by an unknown force after digging up a box containing human bones and a heart in his backyard. He transforms into a monstrous creature with tentacles and zombie-like minions. During a chaotic attack at the school, Crowley falls down, sprouts tentacles, and chases students. He eventually turns into a large rubbery puppet monster converting students into zombies.

• Several students: During the monster attack at the school, one demon eats a girl hiding with Jack and Eve. Later, Jack fights and kills two former students who have been turned into monsters by Crowley.

• The big monster (Professor Crowley's final form): Jack uses sodium to blow up the big monster after a fierce battle. Although the explosion does not kill it immediately, Jack finishes the job and rescues survivors.

The deaths occur mostly during the climax when the possessed Crowley and his monster minions attack the school. Jack fights back with improvised weapons and chemical explosives, avenging his family and stopping the monster outbreak.

The movie titled Monster Slayer produced in 2025 is a 21-minute short film about Monty, who confronts her assailant and the stigma surrounding sex work by painting a billboard after her pleas for justice go unheard while working at a strip club. There is no information in the search results indicating that this Monster Slayer short film has a post-credits scene.

The other search results mentioning "Monster Slayer" either refer to unrelated works (such as a 2016 short film with a different storyline) or do not provide details about post-credits scenes for the 2025 film. Therefore, based on available information, Monster Slayer (2025) does not have a post-credits scene.

Canau has a brief but pivotal role where she begins a confrontation with the demon Doma, showcasing her courage and resolve that sets up a significant moment in the sequel.

Doma reacts with amusement and scorn, while Kokushibbo remains cold but shows growing unrest, indicating tension within the demon hierarchy after Akaza's death.

Man Kibutsuji is visibly furious over Akaza's death, a reaction unique to the anime adaptation and not depicted in the original manga, highlighting a critical emotional moment.

Dick Reno teams up with agent Michelle Pfieffer and a vampiress named Savannah to confront the merciless king of vampires.

Shondiin and Nathan Yazzie battle monsters raised by the mysterious Coyote in a contemporary retelling of the Navajo Hero Twins story.

The movie Monster Slayer produced in 2025 is not explicitly listed in the search results, but based on the closest relevant information about monster-themed family-friendly movies from 2025, the film Sketch (also involving monsters) is described as mildly scary and family-friendly, suitable for tweens with only occasional scares and positive messages about processing emotions.

However, the 2007 film Jack Brooks: Monster Slayer (sometimes confused with similar titles) is a comedy horror with violent and gruesome scenes, including family tragedy and monster attacks, which would not be considered family-friendly for children or sensitive viewers.

Since no direct information about the 2025 Monster Slayer movie's content rating or specific scenes is available, caution is advised. If it follows the tone of typical monster movies with action and horror elements, it may contain:

• Scenes of monster attacks and violence
• Themes of family loss or tragedy
• Some intense or frightening moments for children or sensitive viewers

No explicit mention of strong language, sexual content, or graphic gore was found for the 2025 movie, but the presence of monsters and action violence suggests it may be more suitable for older children or teens rather than very young or sensitive children.

In summary, without plot spoilers, potential objectionable or upsetting aspects for children or sensitive viewers in Monster Slayer (2025) might include:

• Monster-related violence and scary scenes
• Emotional themes involving family loss or danger
• Occasional intense moments that could be unsettling

Parents or guardians should consider the child's age and sensitivity to mild horror or action before viewing.