Watch Intruder

Grocery store employees are working at night restocking the store's shelves. A cashier named Jennifer has a confrontation with her ex boyfriend Craig. Her friend Linda calls for help. A guy named Bill, and Craig get into a fight. Craig leaves the store. The store's owner announces that the store is closing, for good. The employees are marking down prices in the store. Craig is making phone calls to the store that are upsetting Jennifer. Linda gets killed while leaving the store after work. Bill finds Craig watching Jenifer through a window, and is hit in the head. The attacker keeps killing other employees. Jennifer realizes that her other employees are missing and goes searching the store for them. She finds body parts, and dead co-workers.