In Los Angeles, a serial-killer with unknown identity is slaughtering clients in convenience stores. He steals the surveillance tapes and the police department offers a US$ 500,000 reward for him. In a trashy convenience store, the owner Steve, his clients, phone sex worker Mona, and the whore Jess, his employee Donny Donut and his junky nephew Jimmy discuss with the carrier Morty what they would do with the serial-killer if they caught him. Out of the blue, they are attacked by a masked killer during a night of terror.