The tragic murder of 17-year-old Ellie Gould by her boyfriend, Thomas Griffiths, in the quiet town of Calne, Wiltshire, shocked the nation. The case explores the devastating impact of losing a loved one and the chilling reality of how a seemingly normal teenager could commit such a horrific act. Through first-hand testimony from the families of the victim and the perpetrator, as well as insights from a leading criminologist, the film delves into the complexities of the crime and the lasting trauma it left behind.