Mummy Knew: A terrifying step-father. A mother who refused to listen. A little girl desperate to escape.

Four-year-old Lisa's world turned upside down when her step-father moved in. Most of the time he was just violent but then he started making her do things to him she knew were wrong. Soon he was visiting her at night. Lisa begged her mother for help but she just shrugged, telling Lisa he would have his way. It was the greatest betrayal of all.At first Lisa's step-father would just make her stroke and massage his feet, hitting her if she stopped, but he soon wanted more. Much more. By the time she was 12 he was regularly abusing her. One day, when Lisa turned 16, she came home to discover that her mother had swapped bedrooms with her. 'You're my girlfriend now', her step-f…