On December 12, 1988, 'Sunny Girl' Susie turned sweet sixteen. Her boyfriend Jason, gave her a Poison t-shirt, her best friend, Kelly, gave her a name necklace and Kelly's boyfriend, Dazza, gave her a handful of pills. That night Susie Greene disappeared. Her body and kidnapper were never found. Twenty-two years later, the blood splattered t-shirt of the missing schoolgirl is unearthed from the Australian scrub and her best friend Kelly is reluctantly drawn back to her childhood home. Together with Dazza and Jason, once the most important men in her life, Kelly faces the bleakest of high school reunions. As the police dig deeper, Susie's classmates are forced to confront memories of a night they'd hoped to leave buried in their adolescence forever.