When a famous fashion designer is found murdered, Inspector Richard Queen of the NYPD is baffled by her dying clue, prompting him to bring in his son, mystery writer Ellery Queen, to help in the investigation. This was the pilot film for the short-lived TV series.
| Production | Richard Levinson | Producer |
| Production | William Link | Producer |
| Sound | Elmer Bernstein | Original Music Composer |
| Camera | Howard Schwartz | Director of Photography |
| Editing | Douglas Stewart | Editor |
| Art | George C. Webb | Art Direction |
| Directing | David Greene | Director |
| Writing | Frederic Dannay | Novel |
| Writing | Manfred Lee | Novel |
| Writing | Richard Levinson | Teleplay |
| Writing | William Link | Teleplay |
