What should be a happy family day becomes every mother's worst nightmare. One minute Jess Finnegan is grateful for a break from the demands of motherhood. The next she is frantically searching London for husband Mickey and 8-month-old Louis. They have literally disappeared. As the police launch a countrywide manhunt, Jess's panic intensifies. Mickey is then found, unconscious, badly beaten - and alone. Who has Louis? Child traffickers? A desperate stranger? Or someone closer to home? As the hours tick by, Jess fears for her sanity as well as her son's safety. Nothing is what it seems and everyone falls under suspicion.