A ruthless, crooked stockbroker is murdered at his luxurious country estate, and detective Philo Vance just happens to be there; he decides to find out who killed him.

William Powellas Philo Vance
William 'Stage' Boydas Harry Gray
Eugene Palletteas Sgt. Edward Heath
Paul Lukasas Adolph Mohler
Natalie Moorheadas Fanny Del Roy
Richard Tuckeras Anthony Benson
May Beattyas Mrs. Paula Banning
E.H. Calvertas DA John F.X. Markham
Mischa Aueras Albert Brecker (uncredited)