The Unknown Quantity (movie)
- Production country: United States of America
- Producer: Thomas R. Mills
- Production companies: Vitagraph Company of America
- Genre: Drama
- Release date: 4/14/1919
- Run time: 50 min.
Movie description
Mary Boyne, who made shirts at four dollars a week, had no place for love in her life - only despair and hate for the son of the man who had plunged her family into deepest distress. Peter Kenwitz loved Mary, but because he was a mathematician and a pessimist by trade, his love was as hopeless as her chance for happiness.
