

Professor Griggs, teaching at the college, doesn't get paid a living wage; his next door neighbor, successful shoemaker Olsen, has money and plentiful food, while the Griggses have hardly any. When the professor's rich student Phil West falls for beautiful Griggs daughter Amelia and also befriends the poor Reverend Gates (a young man who is also in love with Amelia), he observes the difference in his life and theirs and tries to help make a difference.
Philip Hubbard
Prof. Andrew Theodore Griggs
Lead
Margaret McWade
Mrs. Griggs

Claire Windsor
Amelia Griggs

Louis Calhern
Phil West

Marie Walcamp
Juanita Claredon

William H. O'Brien
College Student (uncredited)

Gertrude Short
Neighbor Olsen's Daughter (uncredited)

Larry Steers
Dinner Guest (uncredited)
“A staggering achievement of craft and ambition. Lois Weber's vision lands with breathtaking precision.”
“Every frame feels alive. The Blot is the rare release that takes its audience seriously.”