Experiment Perilous (1944 ),Hedy Lamarr, George Brent

Based on the 1943 novel by Margaret Carpenter, the film follows Dr. Huntington Bailey (George Brent) after a chance encounter on a train plunges him into the sinister, turn-of-the-century household of a wealthy man (Paul Lukas) who claims his beautifully enigmatic wife, Allida (Hedy Lamarr), is losing her mind. (ipedia).Wik