Cast & Crew
Margot Brienne, an actress who changed her name from Margaret O'Brian when she moved out of Brooklyn, is pursued by two men, the producer of her show, Lester Cunningham, and a wealthy patron, Orson Bitzer. When Bitzer gives her expensive jewels, she jokingly recommends he hire a bodyguard to protect her, but he takes it seriously, seeing it as a way to keep tabs on Lester as well. Bitzer hires Casey McCarthy, a boxer turned private detective, despite Margot's protests, and to the delight of her press agent, Ballyhoo Bates, who views it as a perfect publicity stunt. Casey quickly tires of his role as Margot's "sitter," but when he threatens to quit, she asks him to stay on to keep both Lester and Bitzer out of her way and promises to treat him as a friend rather than an underling. In the meantime, Margot's friend, Lita LeRoy, is hired as her understudy, and Margot discovers that Casey is a talented artist. One night, after Margot has avoided her suitors for some time, Margot and Lester are attacked by three thugs who steal her now-famous jewelry. Later, Casey recognizes her description of the men and seeks to regain his self-respect by capturing the thieves. He disappears for a week, during which Margot's acting suffers because she worries about him. The acting company boards a train bound for Connecticut for their opening night, and to Margot's surprise, Casey is aboard and returns her jewels. Then, calling her a two-timing gold digger for leading her suitors on and never giving them anything, Casey pulls the train's emergency brake and gets off. Margot follows, leaving Lita to take over her role both in the show and with Bitzer. On the tracks, Casey reveals to Margot that he has gotten a job as an illustrator for a magazine, and in love, they make up and kiss.