The doctor at the insane asylum marries one of the nurses and sets up housekeeping nearby. A patient, whose outbreaks of homicidal passion are always lulled by music, escapes from his guards, and wresting a pistol from a man who tries to stop him, makes his way to the doctor's home, where he enters stealthily, the room in which the doctor's wife sits near the piano, playing with a kitten. When she discovers his presences he pleads for her life, he gives her five minutes' grace. She can think of nothing; the time is up. Unstrung, she falls forward and strikes the piano with her hands, producing crashing chords. The effect upon the maniac is at once noticeable. Fearfully she begins to play under the threat of the pistol, until at last the madness dies out of the terrible eyes and the man hands her the pistol. Quietly he permits her to lead him out to where the searching party, headed by her husband, is approaching. Thereafter, every day, until he is dismissed as cured, she goes to the hospital and plays the piano, while he, seated outside the window, listens and is soothed.
—Moving Picture World synopsis