It is 2008 and eight-year-old Sosa Henkoma is standing alone in the corridor of a council block in south London. He is frozen to the spot, every nerve in his body alert to the sound of the lift grinding its way up the floors towards him.
Inside the elevator is his stepmother. He can feel blood running down his neck from a deep cut on his skull made by the pointed heel of her shoe. In just a few moments, Henkoma will be alone with her in his father’s flat and he knows that, as soon as the door shuts behind them, a storm of violence will be upon him.