A Voice in the Dark (film)
A Voice in the Dark is a 1921 American black-and-white silent film directed by Frank Lloyd and starring Ramsey Wallace, Irene Rich, and Alec B. Francis. The film is based on the play "A Voice in the Dark" by Ralph E. Dyar (New York, July 28, 1919). Plot. Two sisters engaged on the same day: Adele, the younger, to Dr. Hugh Sainsbury, and Blanche, the eldest, to Harlan Day, an assistant district attorney. They are both suspected of committing a murder when Sainsbury is found dead. Blanche has a motive as Sainsbury  almost dishonored her so that she wanted to prevent her sister from marrying him. Thanks to the testimony of two witnesses, a deaf woman and a blind man residing in the sanatorium where Sainsbury was working, the murder is resolved: the culprit is Amelia Ellingham, a nurse whom Sainsbury had seduced and to whom he had proposed to marry.