The Hitchhiker (1983)

Season 1: Episode 22

Jerry Maclachlan is the owner of a rundown apartment building who promises Serita, a tenant, that he will make repairs to the building. After he becomes involved with a strange woman Tanya, he discovers a snake tattoo on his body. Both Serita and Tanya tell him how to get rid of the snake. He realizes that the two women are the same person.