Chaney plays two roles: mad scientist Arthur Lamb and Lamb's "experiment", known only as the Ape Man. This hideous creature was the result of Lamb's attempts to transplant animal glands into human beings. A lost film.

Ellen McHugh, a poor Irish immigrant to America, finds work in a carnival and is thus able to send her son Brian to a fine school. But when her position is found out, the school expels Brian. Mrs. McHugh feels compelled to allow the school principal and his wife to adopt Brian. The widow McHugh becomes a housekeeper and raises her employer's daughter Edith, who grows up to fall in love with Brian McHugh.

Sally, Irene and Mary are chorus girls who each have a different approach to life and love. The three women face temptation, betrayal and tragedy while performing together in a Broadway show.

A spoiled young rich girl is forced by misfortune to fight for survival in the slums and alleys, where she becomes involved with all manner of unpleasantness.

An ambitious coat-room checker impersonates an English nobleman.