Noted team of detective and criminologist solve the murder of a new bride, in her compartment, on the train on which they are travelling.

Joe, a poor Italian iceman, saves enough money both to furnish a basement apartment in New York and to arrange passage to America from the old country for his mother. Joe is soon engaged to Trina, and Joe's mother secretly finds work doing laundry in the home of District Attorney Kelland, in order to help them save enough to be married. When a diamond bracelet belonging to Mrs. Kelland disappears, Joe's mother finds it in the dirty linen, but, before she can return it, she is seen with it and arrested as a thief.