After his doctor informs him he will die in six months, Professor Henry Todhunter decides to spend his last days killing someone who contributes nothing but harm to society. When Henry learns that his friend Betty's husband, Michael, has been painting forgeries of ancient paintings for gallery owner Ketti Moret, he investigates the fraudulent dealer's life. Judging that Ketti is truly evil, Henry prepares to murder her.
| Editing | Thomas Richards | Editor |
| Sound | Heinz Roemheld | Original Music Composer |
| Directing | Vincent Sherman | Director |
| Writing | Anthony Berkeley | Story |
| Writing | Barry Trivers | Screenplay |
| Camera | James Van Trees | Director of Photography |
| Costume & Make-Up | Perc Westmore | Makeup Artist |
| Sound | Leo F. Forbstein | Music Director |
| Art | Esdras Hartley | Art Direction |
| Sound | Ray Heindorf | Music Arranger |
| Production | Edmund Grainger | Associate Producer |
| Crew | Charles Kenyon | Additional Writing |
| Crew | Robert Rossen | Additional Writing |
| Costume & Make-Up | Damon Giffard | Costume Design |
| Directing | Elmer Decker | Assistant Director |
| Sound | Charles Lang | Sound |
| Production | Bryan Foy | Executive Producer |
