Every four years, on the 29th February, someone dies.When Nadine Wells is found dead on her forty-sixth birthday, Detective Chief Inspector Ellie Monroe is called to a scene that feels wrong from the moment she arrives. No signs of struggle. No forced entry. Just a quiet death at what should have been a celebration.As Ellie digs deeper into cold cases, a disturbing pattern begins to emerge. Similar deaths. The same date. The same careful calm. And a history that leads back to a long-closed children's home, where something far darker than negligence was allowed to take root.Ellie must untangle past failures, buried truths, and her own personal demons before history repeats itself.Because someone has already decided who comes next.