Eccentric tycoon Jasper Whyte hosts a dinner at his mansion and announces that he will divide his money and give each guest a million dollars before the stroke of midnight. When his long-lost granddaughter suddenly arrives, Whyte changes his mind and proclaims that she will receive his entire fortune. A second lady appears at the estate, claiming that she is actually Whyte's granddaughter, Doris Waverly, and the first woman is found murdered in her room! With each guest possessing a motive, the mystery of the killer's identity briskly unfolds through a stirring series of surprises.
Charley Grapewin
as Jasper Whyte
Lucien Littlefield
as Dr. Denham
Mary Carlisle
as Doris Waverly
Regis Toomey
as Tom Dean
Arthur Hohl
as Arthur Proctor
Fred Kelsey
as Sheriff Jenks
Evalyn Knapp
as The Fake Doris Waverly
Clarence Wilson
as Mr. Felix
Wallace Ford
as Joe Luvalle
Adrian Morris
as Deputy Abner
Hedda Hopper
as Laura Proctor
Rafaela Ottiano
as Elvira
