The Dragon Murder Case

Detective Philo Vance (Warren William) investigates the mysterious murder of Monty Montague (George Meeker) at the family home of his fiancée, Bernice Stamm (Margaret Lindsay). After diving into a murky swimming pool with Bernice's brother, Rudolph (Robert Barrat), Monty failed to surface, but his body was not found when the pool was drained. Following odd markings on the pool bottom, Vance locates the body in a sink hole, but the coroner finds that there is no water in the victim's lungs. …