Born to Be Bad on AllMovie

Loretta Young, who became known almost exclusively for playing sweet, wholesome roles, is kind of a shocker in this romantic drama as Letty Strong, an unwed mother who survives by living life as a grifter and the next thing to a prostitute -- all for the good of her son Mickey (Jackie Kelk), who, not yet 10 years old, is turning into a street hustler every bit as devious and untrustworthy as she is. Then, one day, he's skating on the street and gets hit by a milk truck, which happens to be driven by Malcolm Trevor (Cary Grant), the owner of the dairy, who was spot-checking his operation. Letty and Mickey try to take Malcolm for a hefty sum in court until their case is blown out of the water, but Malcolm also finds himself appalled by the kind of life that Letty is setting up for the boy. He gets her to agree to let Mickey move in with him and his wife Alice ($Marion Burns), at their estate outside the city. And after some extremely rough patches, Mickey begins to see that there's more to being a boy -- or becoming a man -- than what you can steal or cheat off the next guy. But Letty isn't about to let her son get away that easily, or let Malcolm get away with taking him from her, even if he is right. She tries to wreck Malcolm's home and marriage, all to get her son back and take revenge on him in the process.