Three young burglars plan to rob a house where there’s a dinner party going on for serial killers in a sort of rehab program. Several of the serial killers fall off the wagon, with gruesome results.
This was a fun twist on the “home invasion” sub-genre, with some delightfully gory kills and a surprising amount of tension. Though it’s played pretty straight, there’s a satirical edge, and a lot of fun to be had with sending up standard horror tropes, like the disfigured monster in the closet and a final girl who has a murderous streak of her own. It’s certainly not deep, nor does it mean to be; it revels in its implausible gore (including various limbs being lopped off, a skull split with a katana, and a pile of apparent sausage links expelled during a disembowelment), its characters are thin to the point of being cardboard props, and there is no motivation for the violence except the violence itself. “Monster Party” succeeds on its own terms.