Mary Roberts Rinehart (1876-1958) was an American writer, often called the American Agatha Christie, although her first mystery novel was published 14 years before Christie's. She is considered the source of the phrase "The butler did it", although she did not actually use the...
A woman who is convinced her husband is trying to murder her finds herself widowed, confined to a hospital bed, and trying to prove she's not a cold-blooded killer.