Girl in the River, follows one of the nation’s biggest cold cases - the murder of Caroline Glachan, a Scottish schoolgirl who never came home. Now, three suspects stand accused of brutally killing the 14-year-old, more than two decades after her body was found, face down in the River Leven, Dunbartonshire. Shocking revelations unfold in court as Caroline’s family seek justice in one of Scotland’s most haunting cold cases.