New girl Holly is looking to make friends, but quickly finds herself drawn into a frightening and inescapable world. Health worker Sara helps Holly work up the courage to speak out.
Sara finally sees progress as the true extent of the abuse is uncovered. Meanwhile, Maggie and the team tries to persuade the girls to revisit their nightmare.
Betrayals remain raw as the ordeal draws to a close. Holly, Amber and Ruby attempt to start their lives again. Sara and Maggie want to ensure that what happened to them will never happen to anyone else.
Molly Windsor
Holly Winshaw
Maxine Peake
Sara Rowbotham
Lesley Sharp
DC Margaret Oliver
Lisa Riley
Lorna Bowen
Ace Bhatti
Nazir Afzal