Several days after one of his company's dams burst, ruining the life savings of several investors, a shady power company president is found stabbed to death. Ellery Queen gets to the bottom of the mystery.

• Columbia Pictures
• Larry Darmour Productions
• Ralph Bellamy
• Margaret Lindsay
• Charley Grapewin
• Spring Byington
• H.B. Warner
• James Burke
• Douglass Dumbrille
• John Beal