These bargains are to die for! High-tech robots with state-of-the-art firepower have been employed as night watchmen at the Park Plaza Mall. But when an errant bolt of lightning short-circuits the computer switchboard that controls the robots, the mechanical security men turn into rampaging "killbots." Meanwhile, four horny couples are checking out the mattresses after-hours. Little do they know they're about to go from bed to bath … and beyond!