|Anny Ondra gives an excellent performance as Alice, who, rebelling against the possessiveness of her police boyfriend, flirts with an artist and agrees to pose for him with disastrous consequences. Resisting his advances, she ends up murdering him in self-defense. Her boyfriend, Frank, a Scotland Yard detective, is assigned to the case and discovers Alice's glove at the murder scene. Unbeknownst to Frank, the other glove was picked up by a blackmailer who's been watching the artist. Based on a play by Charles Bennett. Blackmail was the first sound picture directed by Alfred Hitchcock.