MEATCLEAVER MASSACRE

In Los Angeles, Professor Cantrell, a prolific expert in the occult, gives a lecture on a Gaelic demon named Morak at the university where he is employed. Afterward, a malcontent student, Mason Harrue, and his friends Sean Allen, Dirk Kramer, and Phil Jones, get drunk and go driving through the city. They decide to visit Professor Cantrell's home and play a prank on him. However, the prank goes awry when Mason bludgeons the Professor and orders the others to murder his wife and children, which they agree to, stabbing them each to death. Professor Cantrell survives the attack, but is left paraplegic and in a coma. Detective Wexler investigates the crime, and his only lead is a small piece of cloth triangle that was discovered at the scene. In his unconscious state, Cantrell invokes the demon Morak to avenge him.

Later, a guilt-addled Sean has a hallucinatory nightmare in which he is chased by an unseen force through a mausoleum and on an empty beach. He awakens and his girlfriend Darlene confronts him about his change in behavior. Sean goes on a walk in the desert to clear his head, but is haunted by disembodied voices and sees a vision of Cantrell's blood, deceased daughter. He is then attacked by the invisible demonic force, which disembowels him. When Sean fails to return, Dirk and Phil confide to Mason that they are frightened that they will be arrested. A defiant Mason assures them that Cantrell will never be able to speak again.

Dirk contemplates committing suicide by cutting his wrists, but stops short of doing so. Instead, Dirk reports to his night shift as a mechanic in Topanga Canyon. While working on a car in the garage, Dirk hears strange noises before the demon slams the car hood on him repeatedly, crushing him to death. Detective Wexler connects the cloth triangle from the Cantrell crime scene to Dirk's jacket. He subsequently begins to investigate the potential occult elements of the case.

Phil visits a massage parlor in Hollywood, where he has sex with a classmate, Patty. That night, while working alone as a projectionist at a movie theater, Phil has disturbing visions of the Cantrell murders before he is killed by an exploding film projector. Wexler becomes convinced that Cantrell has somehow orchestrated the deaths of the three young students through supernatural means. Wexler attempts to confront Mason when he returns to the crime scene at the Cantrell home, believing that Mason may be able to save himself if he can find a counter-incantation that will nullify that which Cantrell used to invoke Morak. A disgruntled Mason instead murders Wexler, before being attacked by Morak.

Later, Mason, now in a psychiatric institution, is mocked by those around him for his claim that he was assaulted by a demon.

The demon Morak kills the surviving student murderers one by one, and Mason, the ringleader, ends up in a psychiatric institution, disbelieved by others.

The ending closes the cycle of supernatural vengeance, with each perpetrator meeting a gruesome fate through the demon’s intervention. Ultimately, Mason’s descent into madness and his confinement in a psychiatric ward underscores the film’s bleak view of justice—earthly authorities fail, but the occult delivers retribution in its own merciless way.