Ava left her daughter downstairs in the pushchair for five minutes. Abi was strapped in and she was sure she was safe. But when she came downstairs, the door was open and Abi was gone. She walked down the road, past the Lovegoods house and was never seen again. One year later the Lovegoods are hosting their long-anticipated housewarming party. Ava, talked into going to it by her worried husband, finds out something new about the day Abi disappeared. Will she finally learn the truth?