A marriage and home can be made complete with the arrival of a new baby, but Shirley Frame (Brenda Blethyn) feels a need to share her good fortune by going out into the world and helping others - driving husband Phil (Warren Clarke) up the wall. Shirley (39) gives birth to her third child and is over the moon. Intent on sharing her delight with the world she embarks on a plan to make life a better place for as many people as possible. Husband Phil and their two teenagers aren't easily convinced. Very quickly she learns that it's not easy being a Good Samaritan, especially in a world of tower blocks, drug abuse and homelessness, even if your own life is rosy. Shirley identifies a string of potential good causes, leaving Phil holding the baby as she tries and fails to fix the lives of others. Whether coaxing a potential suicide from a watery grave, giving reading lessons to an illiterate young mum with an abusive husband, or trying her hand at marriage guidance, Shirley puts her foot in it at every good turn - and invariably brings other people's problems too close to home for comfort.