A sadomasochistic demon named Pinhead is the leader of the Cenobites, agents of evil who appear only when someone successfully "solves" the exotic puzzle box called the Lamont Configuration -- a mysterious device that opens the door to Hell. The puzzle's latest victim is Frank (Sean Chapman), who now lives in a gelatinous skeletal state in an upstairs room of the British home just purchased by his newlywed half-brother (Andrew Robinson), who has married one of Frank's former lovers (Claire Higgins). The latter is recruited to supply the cannibalistic Frank with fresh victims, enabling him to reconstitute his own flesh -- but will Frank succeed in restoring himself completely? Will Pinhead continue to demonstrate the flesh-ripping pleasures of absolute agony?