The Kennel Murder Case {1933 William Powell}

Debonair private eye Philo Vance cancels his sea voyage to Europe when he hears that the wealthy Archer Coe was found dead in his home, an apparent suicide. Philo is soon on the scene of the crime and is quite dubious about suicide as the cause, despite the fact that Coe was found in a room that was locked from the inside. He had run into Cole the previous day at the Long Island Kennel Club and Coe was very much looking forward to the next day's competition and the possibility of his dog winning. It takes only a few minutes for Philo to convince Det. Sgt. Heath that it's murder. Finding the murderer isn't as easy however as Archer Coe was ruthless and had many enemies.