Patsy Hemmingway gave her son Jac to his natural father Jack, and his wife Laura because he didn't fit into her lifestyle. But when he is six and she is on her own, she wants him back. Jac is loved by his parents and grown up half sister Kay. They are unaware of Patsy's schemes, they have other things to worry about. The warning signs about Jac go unnoticed - and it's going to take every bit of their strength to tackle the obstacles ahead.