The scary true story of 17-year-old Thomas Griffiths, who ended the life of his girlfriend and arranged the crime scene to look like a suicide after she broke up with him. Hosted by British actress and presenter Kym Marsh, Murder at My Door with Kym Marsh returns to explore four more cases of innocent people murdered by someone they thought they could trust. The stories show that someone’s safe place, their sanctuary, is also somewhere they can be at their most vulnerable. In the show, Kym Marsh narrates with her distinct empathetic style the tragic deaths of victims who unknowingly opened their door to evil, experiencing the ultimate betrayal in the most intimate of settings.