Charlie, a wandering tramp, becomes a circus handyman and falls in love with the circus owner’s daughter. Unaware of Charlie’s affection, the girl falls in love with a handsome young performer. Charlie’s versatility makes him star of the show when he substitutes for an ailing tightwire walker. He is discharged from the company when he protects the girl from her father’s abuse, but he returns and appeals to the handsome performer to marry the girl. After the wedding the father prevails upon them to rejoin the circus. Charlie is hired again, but he stays behind when the caravan moves on.

An insane surgeon’s obsession with an actress leads him to replace her wounded pianist’s hands with the hands of a knife murderer which still have the urge to throw knives.