Paid was the third film version of the Bayard Veiller stage play Within the Law. Joan Crawford is cast as a shopgirl falsely arrested for stealing and sent to jail for three years. She swears vengeance on the store owner (Purnell Pratt), and to that end sets up a shady but legal racket wherein she and partner Marie Prevost act as "matchmakers" for lonely old men. It's all part of a plan to fleece the store owner by placing him in a compromising position, but Joan is sidetracked when she meets the owner's son (Kent Douglass. Marrying him in order to exact revenge on his father, Crawford falls in love with the young man and abandons her scheme. But once more, Crawford is wrongly accused of a crime, this time of murder. Paid ends happily for all concerned--especially MGM, which remade this reliable property (again!) under its old title Within the Law (1939), with Ruth Hussey in the lead.