A policeman investigates a woman's link to murders that are preceded by a shrilling horn inside a family mausoleum.
William 'Stage' Boyd
as Lt. Valcour
Lilyan Tashman
as Laura Endicott
Irving Pichel
as Philip Endicott
Regis Toomey
as Office Cassidy
Sally O'Neil
as Jane, a Maid
Blanche Friderici
as Julia Endicott
Walter McGrail
as Herbert Endicott
Lester Vail
as Thomas Hollander
Martha Mattox
as Miss Roberts
Frank Sheridan
as Chief of Police
Guy Oliver
as Watchman
Frederick Sullivan
as Medical Examiner
