Dolly Morgan works as a switchboard operator in a ritzy hotel, hoping to find rich men to "trim" of their money. When fellow con artists Gwen and Bradley recognize her as "Angel Face," a former convict who has violated her parole, they convince her to join them in an extortion scheme against wealthy hotel guest T. Roger Hammond. The morning after Dolly and Hammond have a rendezvous, he goes to the police, suspicious that the man pretending to be Dolly's outraged husband, and to whom he gave $10,000 for silence, is a crook. Later, Brad gives Gwen the money to hide under her pillow, not knowing that Dolly is observing them through a keyhole. After Brad lies to Dolly that Hammond never paid off, she retrieves the money and runs off to Atlantic City. Pretending to be rich herself, Dolly meets handsome cement conventioneer Steve Crandall and assumes that he is wealthy. A few days later, when the smitten Steve asks her to marry him, she agrees. While she is packing, Brad, who has followed her to Atlantic City, comes to her room and threatens to have her sent back to Joliet if she does not return his money. She agrees, saying that she will get the money from Steve, but sneaks out of the hotel while Brad is in another room. When Dolly and Steve marry and travel to his hometown of Winthrop, Alabama, she is welcomed by his mother and brother Hank, but quickly realizes that she was mistaken about the Crandall family wealth. That night, even after Steve promises that his formula for "Enduro Cement," which will last five hundred years, will make him rich, she tells him that she cannot wait in poverty and boards the train out of town. The next morning, to both Steve's and Dolly's surprise, she returns and tells him that she loves him. Sometime later, Brad and Gwen find Dolly again and come to the house, telling Steve and his family that they are her cousins from New York. Even though Dolly returns the $10,000 to Brad, he wants more. When they learn that New York industrialist Starrett is offering to buy Steve's formula for $100,000, Brad decides to take most of the money himself. They all travel to New York, where Steve buys everyone expensive gifts. Overhearing Brad trying to con the trusting Steve out of his money, Dolly can no longer keep silent and confesses who she is to her husband. Steve is stunned by Dolly's revelations, but can do nothing when Sgt. "Matty" Matheson, her old nemesis, whom she has called, comes to take her back to prison. Sometime later, Dolly is called to the office of the warden, who tells her that her husband has asked her to be paroled into his custody. Despite her initial refusal, when Steve comes into the office, she happily goes into his arms.