A young boy named Tommy sees his father murdered by his grandfather in a brutal satanic ritual on Halloween night. Years later, as Tommy’s grandfather attempts to initiate him into the cult, a mysterious killer begins preying on the people closest to Tommy.

In the smog-choked dystopian Los Angeles of 2019, blade runner Rick Deckard is called out of retirement to terminate a quartet of replicants who have escaped to Earth seeking their creator for a way to extend their short life spans.