Three young siblings arrive at Maggie's door after being taken into care. Teachers of eight-year-old Bobby spotted distinct hand-shaped bruises on his arm and his dad and stepmother are uncooperative and hostile to Social Services. While they investigate, Bobby, as well as Melodie and Poppy, are looked after in Maggie's home. As the children settle in, a thought won't let Maggie go. While Melodie and Poppy are clean, well-fed and immaculately dressed, Bobby is pale, severely underweight and extremely quiet. What looks like a case of neglect is actually something much more sinister. Bobby and his half-sisters are hiding a cruel secret, but can Maggie find the truth?