Truart Film Corp.

A scientist attempts to transplant a gorilla's brain into a man.

Sunny Duane, a chorus girl, goes out to dinner with Cornelius Fellowes, a wealthy man who is murdered the same night. Anxious to avoid suspicion, she escapes and quickly marries a man who believes he is going to die and wants to leave her his fortune. He recovers but is helplessly crippled. With the law closing in a last minute change of fortune rescues Sunny future.

"Hurricane" Jack Foster is a smuggler who ignores his wife and child in order to pursue Marguerite Blair, the unhappy wife of the Chief Ranger of the North West Mounted Police. Foster lays plans for his final theft, after which he will elope with Marguerite, although Blair lays his own plans to thwart his rival. Dispirited over Blair's lack of attention, Marguerite nonetheless calls his office before running away with Foster in a last effort to reconcile with her husband. Marguerite cannot reach Blair but does receive a message that his remoteness has been due to his job rather than "another woman." When Foster then attempts to carry out his plan and knocks out Blair in the process, Marguerite does not hesitate to shoot Foster. With Foster and his gang rounded up, the Blairs reconcile.

Robert Lanning, a proper Bostonian who owns an estate in southern New Mexico, suspects that some of his employees are smuggling arms into Mexico, and sends his son, Robert Jr., to investigate. During his journey west, Robert meets Mary Hamilton, a stranded actress from a roadshow company of Uncle Tom's Cabin. Because Mary is still in costume as the character, “Little Eva,” Robert mistakes her for a child and takes her with him to the ranch. He ultimately discovers the identity of the arms smugglers and, with the help of the Mexican Rurales, brings the gang to justice. Robert then realizes that Mary is not a child and wins her for his wife.

Mary and John Rand marry right after graduating law school, but John chooses to join the ministry. After the birth of their daughter, Henrietta, and unhappy in that life, Mary persuades John to consent to a divorce. She resumes practicing law and with the help of Bruce Corbin is eventually elected Attorney General, becoming romantically involved with him as well. Meanwhile, Henrietta grows up neglected and enters a free life of jazz and drinking. She catches Corbin’s eye and he falls for her. What follows is a tale of murder, revenge and redemption.