Who Killed Mary Whats'ername? (1971) is a Crime, Mystery, Thriller film that follows a prostitute is murdered on the streets of a tough, low-income neighborhood. A diabetic retired boxer who knew her is appalled by the lack of interest shown in the case by the police or anybody else in the neighborhood, and decides to investigate the case himself. Who Killed Mary Whats'ername? is not currently listed with streaming providers in your selected region, but availability can change over time. It has a user rating of 4.9 out of 10 from 7 votes. Fans of crime movies may also want to explore similar titles below.