It is 1995, Scotland. The prison of Cornton Vale. Laura Brannigan is in jail for a murder she claims she didn't commit. For two years she's been battling for justice - insisting the police made a terrible mistake; pleading that she didn't kill her best friend, Jackie. With her spirits at their lowest ebb, she's resigned to her miserable fate - until, out of the blue, a letter is delivered to the prison. At the sight of the letter's handwriting, Laura's heart lurches - taking her back to a different, happier time and memory of an old love... 1972 was the year Laura met Stuart and experienced her first summer of love.It was a heady time as she'd only recently been able to stop running. For Laura had always been a survivor: leaving an abusive home at fifteen and then life on her own - until she met Jackie. She and Jackie became best friends, swore they'd be sisters for ever. So what went wrong in the intervening years? And why is Stuart writing to Laura now? Does he have faith in her innocence? And can he help free Laura from prison - and her past?