When we first meet her, the teenaged Mia (Jarvis) is leading an aimless, hardscrabble existence in the British projects. She has just one secret dream: to become a hip-hop dancer. She practices obsessively, but her unstable family life and alienation from her peers leaves her frustrated and increasingly prone to angry outbursts. One day, her erratic, alcoholic mother Joanne (Wareing) brings home a hunky, younger boyfriend named Connor (Fassbender). Mia is initially wary, but soon is won over by Connor's warmth and open charm. With her mother happy, and a new masculine presence in the house, things start looking up for the wayward teen. But then Connor and Mia start getting a little too close.