As teenagers, Poppy Carlisle and Serena Gorringe were charged with the brutal murder of their male teacher, a case that gripped the nation and labelled them ‘The Ice Cream Girls’, however only one of them was found guilty. Years later, Serena, having rebuilt her life, returns to her home town to nurse her dying mother, unaware that Poppy has been granted release. Whilst Poppy is determined to set the record straight about what really happened, Serena desperately tries to keep it secret.