Let Sleeping Corpses Lie

After a chance meeting while traveling the countryside, a man and a woman become suspected of murder. They start to leave a lot of dead bodies in their wake, but, unbeknownst to the police, the real culprits are living dead zombies.

Let Sleeping Corpses Lie is a 1975 drama horror movie directed by Jorge Grau, starring Cristina Galbó, Arthur Kennedy, Ray Lovelock. It holds an IMDb rating of 6.7/10 from 10,530 votes and runs 1h 35m.