The night begins similarly, with Craig's disruptive reappearance, but his role is amplified. He's not just Jennifer's ex; he's a fellow former employee, also fired, but harboring a different grudge. He becomes a red herring, initially suspected by Jennifer and the remaining staff. The real killer, however, is already inside, hiding amongst the towering shelves and stockrooms, meticulously preparing their gruesome "performance."

The murders begin subtly. Instead of overt attacks, the killer manipulates the environment – tampering with machinery, rigging traps with cleaning supplies, and even poisoning some of the products on the shelves. The staff, already on edge due to Craig's presence and the impending job loss, become increasingly paranoid, turning on each other as the accidents escalate into deliberate acts of violence.