Intruder (1989) plot summary
The nightstaff, of a soon to be closing down supermarket find themselves in a fight for their lives when a soon to be laid of and thus seriously pissed off ex-employee (of sorts) shows up with a butcher knife in his hand and a hateful homicidal rage for his still employeed former co-workers. As he carries out his crazed frenzy of violent carnage the survivors must uncover his identity before he slaughters them all.
