John Trask, a struggling, ambitious young attorney, is puzzled when Christine Lloyd, a mysterious young woman, entrusts him with $30,000 to purchase a necklace that will be delivered to his office the next day. The necklace was stolen by Christine's brother Sydney to pay his gambling debts and Christine, attempting to shield her brother, hires Trask to retrieve it. Trask accepts, and after hiding the money behind a painting, leaves his office for the night. Later that evening, building janitor Annester Norton discovers the money while on his rounds and absconds with it. The next day Aline Norton, the janitor's daughter and an unwitting pawn of the gamblers, appears at Trask's office with the necklace. Discovering that the money is missing, Trask goes to the casino to investigate and miraculously wins $30,000 with which he purchases the necklace. After placing the necklace in Lloyd's hands, Trask is shocked to discover that it is a fake. Entering the gambler's den, Trask single-handedly retrieves the real necklace, which he restores to its rightful owner. Norton, repenting his theft, returns the money and Trask realizes that he loves the janitor's daughter.