Rosamond, a pampered society girl who craves excitement, becomes annoyed with her very proper fiancé, George, when he avoids trouble at a prizefight. To compensate for the staid evening, she races her car through the streets of the city until she is arrested by a traffic cop and summoned before a judge. The judge recognizes her as a habitual offender and agrees to release her only under the condition that George assume responsibility for her conduct. Rosamond at first refuses to be released under George's supervision, but after spending a night in jail with a drunk, she changes her mind and accepts the probation. George and Rosamond later attend an artists' ball which becomes rowdy, and George insists that Rosamond leave with him. She refuses and, greatly angered, jumps in her car, returning at great speed to the city. The car goes off the road and plunges down an embankment; Rosamond is not hurt, but she is captured by two convicts. For 2 weeks she lives as a captive in a cave. One of the convicts falls in love with her and helps her escape, losing his life for this kindness. Rosamond is chased by the other convict, but George arrives in time to capture the criminal and turn him over to the police. Rosamond repents of her wild life and seeks refuge in George's conventional arms.