[1][3][4] The play was filmed earlier (in 1915) in a version starring Blanche Sweet, which emphasized the horror elements.

[1] Montagu Love went on to star in several other silent horror films, The Haunted House (1929) and The Cat Creeps (1930).

Dorothy Stone (Binney) is the step-daughter of barn-storming hypnotist Professor Balzamo (Love), who has used her as his subject since childhood.

Her mother's deathbed warning leads Dorothy to leave the hypnotist and she finds shelter in a small town with Mrs. Arnold (Jennings) and her son John (Hunter), who falls in love with her.

The chance visit by the hypnotist results in a situation where Dorothy is permanently cured and learns that she is actually the daughter of the physician.