| The Return of Doctor X | |
|---|---|
| Directed by | Vincent Sherman |
| Produced by | Bryan Foy Hal B. Wallis (uncredited executive producer) Jack Warner (uncredited executive producer) |
| Written by | Lee Katz William J. Makin (story) |
| Starring | Wayne Morris Rosemary Lane Humphrey Bogart |
| Music by | Bernhard Kaun (uncredited) |
| Cinematography | Sidney Hickox |
| Editing by | Thomas Pratt |
| Studio | Warner Bros. |
| Distributed by | Warner Bros. |
| Release date(s) | December 2, 1939 |
| Running time | 62 minutes |
| Country | United States |
| Language | English |
The Return of Doctor X (also billed as The Return of Dr. X) is a 1939 American science fiction-horror film directed by Vincent Sherman and starring Wayne Morris, Rosemary Lane, and Humphrey Bogart as the title character. It was based on the short story "The Doctor's Secret" by William J. Makin. Despite supposedly being a sequel to Doctor X (1933), also produced by Warner Brothers, the films are unrelated.
This was Bogart's only science fiction or horror film. He never liked to talk about this film or another film of this period, Swing Your Lady, both of which he felt were among his worst.
A pair of bizarre murders occur wherein the victims are drained of their rare blood type. Reporter Walter Garrett (Wayne Morris) consults with his friend Dr. Mike Rhodes (Dennis Morgan) which leads them to Rhode's former mentor, hemotologist Dr. Francis Flegg (John Litel). Flegg is initially unhelpful but when Garrett and Rhodes notice a striking resemblance between Flegg's strange assistant, Marshall Quesne (Humphrey Bogart) and the late Dr. Maurice Xavier, they confront Flegg. Flegg admits that he used scientific methods to bring Xavier back from the grave and employed a synthetic blood formula to sustain his life. However, the formula is unstable, therefore, Quesne/Xavier must seek out human victims with a rare blood type featured in the formula in order stay alive.