A man known to be a mute is suspected of committing a murder, as he was noticed at the scene. However, witnesses saw and heard him talking as he was leaving the scene of the crime. The police must determine if he is the actual killer or if he is being framed.
The old evil twin device is given another airing in an unremarkable programmer courtesy of Monogram, one of the cheapest exploitation studios in 1930s Hollywood. Lionel Atwill has the perfect alibi for murder - he is deaf-mute, and a witness heard the killer speak. However, he has a deaf-mute twin hidden behind a panel. He substitutes his brother in court, but equally clever justice wins the day. A sorry mix of low-grade suspense and comic relief means The Sphinx stinks! Monogram remade the same story as The Phantom Killer in 1942.
| role | name |
|---|---|
| Jerome Breen | Lionel Atwill |
| Jerry Crane, society editor | Sheila Terry |
| Jack Burton, reporter | Theodore Newton |
| Terrence Hogan | Paul Hurst |
| Luigi Bacigalupi, janitor | Luis Alberni |
| Inspector James Riley | Robert Ellis |
| Jenks | Lucien Prival |
| Dave Werner | Paul Fix |
| Mrs Werner | Lillian Leighton |
| role | name |
|---|---|
| Director | Phil Rosen |
