Nicholas Rood, dishonest mine owner, finds a Black Doll on his desk and knows that vengeance is about to overtake him for murdering his former partner. He is knifed as he talks to his daughter Marian. She summons her fiancé Nick Halstead, a private detective. He finds that six people had a motive for the murder; Rood's sister Mrs. Laura Leland; her son Rex; Rood's associates Mallison and Walling; Esteban, a servant and Dr. Giddings. Sheriff Renick and his deputy Red get the clues all mixed up, but Nick finally narrows the search down to one suspect...
as Nick Halstead
as Marian Rood
as Sheriff Renick
as Nelson Rood
as Laura Leland
as Walling
as A.H. Mallison
as Dr. Giddings
as Rex Leland
as Esteban, the butler
as Rosita, the housekeeper
as Deputy Red
as Coroner
as Cabbie
