Men of the night (1926)

Mrs. Abbott, an elderly newspaper vendor in dire straits, is taken in by Rupert Dodds, an art dealer, and Dick Foster, his young companion, who see in her transparent honesty an excellent shill for illegal activities in their art shop, where they remold gold and silver articles. Mrs. Abbott grows fond of the young man playing matchmaker for him and Trixie, the bookkeeper. Soon she becomes suspicious of Dodds and Dick’s activities and discovers that they are planning to rob the home of Lady Broderick, a wealthy customer. Attempting to prevent the crime she is arrested, tried and convicted but Dick confesses and clears her of the crime but there are more surprises ahead.