- HD 1080
- Runtime: 61m.
- Status: Released
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- Languages: en
- Country: United States of America
- Director: Lesley Selander
- Stars: Tim Holt, Richard Martin, Edward Norris, Movita, Frank Wilcox
- keywords: california, estate, heir
- Production_studio: RKO Radio Pictures
- Slogan: AMBUSH BY DAY...MURDER BY NIGHT...In Old California!
- The The Mysterious Desperado is featured in the top rankings of 1949
- #54 in Top Romance Movies of 1949
- #33 in Top Adventure Movies of 1949
- #21 in Top Action Movies of 1949
- #35 in Top Western Movies of 1949
A cowboy is accused of his father's murder.