Watch Graveyard Shift (1987) Official Trailer

Lots of people work the graveyard shift, policemen, waiters, taxi drivers... vampires

Night brings out the hunger in people, especially a mysterious NY cab driver. He is a powerful vampire. And working the night shift brings a sultry array of sensuous passengers within his grasp. Embracing those ready to die, he controls an erratic but well-balanced vampire realm. Then unexpectedly, he discovers erotic human passion-unleashing a raging, terrorizing evil. When a slew of innocent citizens are senselessly slaughtered, the baffled police must solve a 350 year old mystery of unsated passion.