Burnt Fingers (1927)

Anne Cabell is a popular hostess at the Cafe Justine and the dancing partner of gigolo Bernard Stockmar. Her friend Vera, who had an affair with Bernard, fears that he might use her love letters to blackmail her. Anne tries to recover the letters, but after Bernard discovers her searching his apartment, he is shot to death by an unknown assailant. Although a neighbor helps her escape, Anne is traced by the police, and her fiancé, Dick Farnham, believes she is guilty of the crime. Anne's benefactor, Lord Cumberly of the Foreign Office, provides her with an alibi and proves that both Bernard and his killer were spies for an unfriendly government. The murderer's confession frees Anne, who happily reunites with Dick.