Description: A policeman accuses Albert Campion of assaulting him, a charge Campion would strenuously deny if only he could remember what happened; but all he can recall is that the number "15" is the key to the mystery.
Synopsis A policeman accuses Albert Campion of assaulting him, a charge Campion would strenuously deny if only he could remember what happened; but all he can recall is that the number "15" is the key to the mystery.