Toni Le Brun, a beautiful Viennese singer, becomes the ward of the wardrobe mistress of a Monte Carlo nightclub. Her benefactor, however, is actually a baroness incognito. Toni falls in love with the handsome Richard, but as they prepare to marry, she comes to believe he is only after the wealth accompanying her new noble status. But truth, like true love, will not be kept secret long.

A man thinks his high-spirited wife is cheating on him.

Show girl Jill Deverne is married to song writer Fred Deverne, and everyone is involved in the Broadway night life and endless parties. Jill is being pursued by a gangster, and she leaves her husband after he spends the night with a floozie. Jill ends up as the gangster's moll, but she soon gets tired of the lifestyle.

Perry Ashwell is a self-satisfied child psychologist who takes his colleagues and wife somewhat for granted. So confident is he of his position that he introduces rich attractive painter Octavio Quaglini to his office and home. Quaglini is no respecter of convention, and April Ashwell is extremely attractive.

A New York tramp falls in love with the mayor's amnesiac girlfriend after rescuing her from a suicide attempt.

1944 film by Lewis Milestone

Betrayal is a 1929 drama film produced for Famous Players-Lasky and released by Paramount Pictures.The film is the last silent film directed by Lewis Milestone,the last silent performance by Gary Cooper, the last silent performance by Germany's Emil Jannings,and the only onscreen pairing of Cooper and Jannings. It is considered a lost film.