Helen Stephens is sent to prison for murdering her boss, managing director of Entirely Tiles. While she struggles to come to terms with her situation, those around her want to keep her inside. Margaret the Governor hates appeals, her sister Laura wants her flat and her boyfriend and alibi Justin has disappeared. Helen not only has an incompetent lawyer, Tony, and an over-friendly cell-mate to contend with but she has also taken on Top Dog and the prison posse. Meanwhile she receives some unexpected help from her colleague Henry.

Helen has decided to put together a team for the prison quiz and her eye is on an unexpectedly special prize. Meanwhile her lawyer Tony has been warned off her case and events at the Entirely Tiles head office gather pace.

Christine has been sent to Germany on a prison exchange. Helen is instructed by prison governor Margaret to look after their German guest Gertrude Verna. Gertie is in prison for murdering and eating her husband and is a celebrity with several books to her name. Helen finds it difficult to keep Gertie out of trouble as Gertie makes her views clear what she thinks of her fellow prisoners. Investigations in the Entirely Tiles office continue.

Frustrated with the lack of progress with her appeal, Helen takes matters into her own hands and decides to study the law. Top Dog has fired her posse who, lost without a leader, make Helen their new leader. Incompetent lawyer Tony has been doing some snooping at the Entirely Tiles offices and the new MD and widow Mrs Bridges is getting suspicious.

There is great excitement at Broadmarsh Prison as governor Margaret announces the annual prison choir competition. Helen is persuaded to audition and is certain to be made the lead vocalist until the surprise appearance of Virna. Meanwhile Laura and Justin are worrying about finances and incompetent lawyer Tony is suspicious of Henry's motives. Widow and Entirely Tiles MD Mrs Bridges makes an interesting discovery. The inter-prison sing-off is judged by Tony Blackburn and the Broadmarsh Prison ladies are excited to see a singing regular from Woolley Grange Prison - Nigel.

Helen is moved to D Wing where she is befriended by white collar criminal Jo. She soon receives an unwanted visit from widow Mrs Bridges, who has something interesting she wants to show her. Governor Margaret has been told of a new appointment and is determined to make her potential incumbent's life a misery. Henry makes a gruesome discovery.