Intruder (1989)

A quiet night shift at a small-town supermarket turns bloody when the stores crew begin their late-night stocking routine. What starts as a normal evening quickly turns tense after news breaks of a violent ex-boyfriend recently released from jail, who shows up causing trouble and raising suspicions. Once hes removed from the store, the workers think the worst is over-but as the doors lock for the night, someone else is inside. One by one, the employees are brutally picked off in creative and gruesome ways, their bodies discovered too late by their friends. With the phones cut, exits sealed, and lights flickering, the survivors scramble through aisles, storage rooms, and meat lockers trying to find a way out or uncover whos behind the killing spree. The tension builds as the identity of the killer is slowly revealed, leading to a frantic, blood-soaked finale inside the claustrophobic confines of the store. Intruder turns the mundane setting of a grocery store into a trap, filled with sharp edges, dark corners, and no escape.