An evil doctor and the greedy wife of a rich man plot to poison him so they can get their hands on his money.
Boris Karloff
Dr. Victor Sartorius
Joan Wyndham
Eve Rowe
Arthur Margetson
Roger Clifford
Mona Goya
Yvonne Clifford
Anthony Ireland
Capt. Arthur Halliday
Morton Selten
Sir Charles Clifford
Nina Boucicault
Mary Clifford
Gibb McLaughlin
Jacques
