Monster Party

Plot

Casper, Iris and her boyfriend Dodge, are three friends who perform highly coordinated burglaries in Malibu. After pulling off a successful burglary in broad daylight, Iris tells the other two that she has info on another possible job at a ritzy mansion near the coast. Due to the undoubtedly high security for the house, they decide against it.

Later, Casper discovers that his father, Flash, has been kidnapped by Emory, a local loan shark whom Casper's father is indebted to. Casper goes to Emory's strip club and attempts to negotiate his father's release, but Emory declines. He tells Casper that if he does not get him what Casper's father owes him, he will kill him. Knowing that his father will die if he tries to notify the police, Casper decides to go in on Iris's mansion job.

Under the guise of caterers, the three meet with the mansion's owners, the Dawson family; father Patrick, mother Roxanne, son Elliot, and daughter Alexis. The family gives off suspicious vibes, especially Roxanne, who is eager to assure that this night is perfect. Casper scouts the home and locates a safe and forms a plan with Iris and Dodge that involves short-circuiting the safe while attempting to crack it. As night approaches, the Dawson's guests arrive. These guests consist of musician Ollie, "blood brothers" Cameron and Jeremy, group leader Milo and his date Becca. During dinner, each person begins introducing and labelling themselves as "addicts" who are gathering to celebrate being "sober". While this is occurring, Casper is attempting to unlock the safe with Dodge on guard, and Iris in the kitchen monitoring the guests. Dodge is surprised by Elliot, who becomes increasingly hostile towards Dodge and insults Iris. When Dodge attempts to push Elliot away, Elliot pulls out a meat cleaver and severs Dodge's hand before savagely butchering him to death.