Lou tries to give up drug dealing on Prisoners' Wives

© BBC - Tiger Aspect Productions
Natalie Gavin in character as Lou

On Prisoners' Wives tonight at 9.00pm on BBC1 Lou returns home from a night-time deal to find her flat door and Mason's bed empty. She panics - has he been abducted? Then she spots him - he's been sleepwalking. Guilt-ridden, Lou vows never to leave Mason home alone again, and to become a responsible mother. She wants to stop drug dealing. But leaving behind a world of criminality is never easy, and as Lou tries to go straight her innocent son gets himself into a lot of trouble. Gemma is determined to see justice prevail and helps the police build a case against her husband. She goes to extraordinary lengths to protect her anonymity - but is it enough? Meanwhile, Francesca attends a prison-run marriage guidance course, under duress. Paul is hoping that they still have a future and does his best to win her back, but will Francesca  capitulate? Jonas Armstrong stars as Steve, Emma Rigby is Gemma, Polly Walker is Francesca, Pippa Haywood is Harriet, and Natalie Gavin is Lou.