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.
Unfortunately the movie Who Killed Mary Whats'ername? is not yet available on HBO Max.
| Writing | John O'Toole | Writer |
| Directing | Ernest Pintoff | Director |
| Camera | Gregory Sandor | Director of Photography |
| Production | Drew Denbaum | Casting |
| Production | Barbara Claman | Casting |
| Sound | Gary McFarland | Music |
| Editing | Angelo Ross | Editor |
| Camera | Minervino Rojas | Camera Operator |
| Sound | Michael Scott | Sound |
| Production | Dennis Friedland | Producer |
| Production | George Manasse | Producer |
