Writer Kenneth Magee has bet that he can finish a story at rural resort Baldpate Inn, now closed for the winter. The owner has given him the "only" key to the front door. But there are six other keys, and peculiar characters, some of them up to no good, keep turning up as the mystery deepens.

• RKO Radio Pictures
• Phillip Terry
• Jacqueline White
• Eduardo Ciannelli
• Margaret Lindsay
• Arthur Shields
• Jimmy Conlin
• Tom Keene
• Jason Robards Sr.