 Bedelia Carrington (Margaret Lockwood) is living happily, it appears, in Monte Carlo with her husband Charlie Carrington (Ian Hunter.) But a cultivated young artist, Ben Chaney (Barry K. Barnes), begins probing into her past with curious concern. Chaney, who is really a detective, learns that Bedelia s obsession for money has led her, in the past, to husband-poisoning for the insurance money.