All Lorna has ever wanted is a husband and four children. And now she has just that - except they are someone else's husband and someone else's children. But Robert Danson and his kids are practically hers. After all, Robert's wife had walked out on the family ten years earlier, and, having fallen for Robert, Lorna has been happy to step into the breach. So now Lorna has everything a real mother should have (aside from the stretch marks) and couldn't be happier, until Robert's real wife returns into their lives. She's beautiful, assured and looking for forgiveness. But is that all she wants? Lorna can't help but feel that this family isn't big enough for both of them . . .