Following a bitter split from wife, Anne, Cameron finds love again in the arms of Sue. Unfortunately, neither his troublesome teenage son or Sue's 8-year-old daughter, Emily, are happy about the new union. Meanwhile, Sue's ex, Paul has just had a baby with new partner, Natasha. This complicated family life that is about to get even more difficult when Emily is found murdered on the patio of her home. Any one of the adults who care for her could have killed her, but which one?