Two girls escape from an open borstal. Annetta (Chrissie Cotterill) wants to visit her baby daughter who is being raised in a convent. Carol (Amanda York) plans to be recaptured and sent to the closed borstal where her girlfriend Doreen is being held. Carol's plan works, but she is devastated to find that Doreen has a new girlfriend. Doreen and the girlfriend taunt Carol. Annetta is arrested at the convent and sent to the same closed borstal. She assumes Carol "grassed" her up and proceeds to plan her revenge. Inmate Eddie professes her love for Carol and offers protection, so Carol begins a relationship with her. Annetta's constant bullying attempts keep her in solitary confinement. When Eddie is released Carol loses her protection and Annetta plans another attack.