Imprisoned during the Spanish Civil War, John "Kit" McKittrick is released when a New York City policeman pulls some strings. Upon returning to America, McKittrick hears that a friend has committed suicide, and he begins to smell a rat. During his investigation, McKittrick questions three beautiful women, one of whom has a tie to his refugee past. Pursued by Nazi operatives, McKittrick learns of the death of another friend, and begins to suspect the dark Dr. Skaas.
Unfortunately the movie The Fallen Sparrow is not yet available on HBO Max.
| Directing | Richard Wallace | Director |
| Writing | Dorothy B. Hughes | Novel |
| Production | Robert Fellows | Producer |
| Editing | Robert Wise | Editor |
| Camera | Nicholas Musuraca | Director of Photography |
| Writing | Warren Duff | Screenplay |
| Sound | Roy Webb | Original Music Composer |
| Sound | C. Bakaleinikoff | Music Director |
| Crew | Vernon L. Walker | Special Effects |
| Sound | Bailey Fesler | Sound Recordist |
| Sound | James G. Stewart | Sound Re-Recording Mixer |
| Directing | Sam Ruman | Assistant Director |
| Costume & Make-Up | Edward Stevenson | Costume Designer |
| Art | Darrell Silvera | Set Decoration |
| Art | Harley Miller | Set Decoration |
| Art | Mark-Lee Kirk | Art Direction |
| Art | Albert S. D'Agostino | Art Direction |
| Art | Van Nest Polglase | Production Design |
