Golden Bear-nominated director of horror films The Boogeyman and The Devonsville Terror and the acclaimed drama The Tenderness of the Wolves.
He became notorious for a long line of direct-to-video movies based on the lives of serial killers.
He started working with avant-garde artist Andy Warhol, who produced and appeared in some of his films, in 1977.
He started his career as an actor in 1960s films like Fanny Hill.
His father was German comic Ludwig Manfred Lommel.