Archer Coe has been found dead in his locked bedroom. The cops consider it suicide, but Philo Vance believes otherwise. Archer had a number of enemies, any one of which would have been glad to knock him off, but which one did and how did the murder occur in a room looked from the inside. Only one man, the fascinating, debonair detective Philo Vance, would be able to figure out who is the killer.
