Giallo filmmaker Umberto Lenzi directs the exploitative thriller Hitcher in the Dark under the pseudonym of Humphrey Humbert. Mark (Joe Balogh) is a psychopath who is obsessed with his late mother. He drives around Venice Beach, CA, looking for young women to abduct for his fantasies. He picks up the hitchhicker Daniela (Josie Bissett). ~ Andrea LeVasseur, Rovi