One on Top of the Other (1969) is a Mystery, Thriller film that follows a San Francisco doctor encounters a prostitute who bears a striking resemblance to his late wife. One on Top of the Other is not currently listed with streaming providers in your selected region, but availability can change over time. It has a user rating of 6.4 out of 10 from 91 votes. Fans of mystery movies may also want to explore similar titles below.