- HD 1080
- Runtime: 91m.
- Status: Released
- 1
- Languages: en
- Country: United States of America
- Director: Jacques Tourneur
- Stars: George Brent, Hedy Lamarr, Paul Lukas, Albert Dekker, Carl Esmond
- keywords: insanity, film noir, stepson
- Production_studio: RKO Radio Pictures
- Slogan: Who's in danger from whom? Who's crazy? Who can fathom the obscure motivations?
- The Experiment Perilous is featured in the top rankings of 1944
- #34 in Top Romance Movies of 1944
- #19 in Top Thriller Movies of 1944
In 1903, Doctor Huntington Bailey meets a friendly older lady during a train trip. She tells him that she is going to visit her brother Nick and his lovely young wife Allida. Once in New York, Bailey hears that his train companion suddenly died. Shortly afterward, he meets the strange couple and gets suspicious of Nick's treatment of his wife.