"The gripping allure of long-form podcasts, such as Serial." --Observer On the evening of Saturday, March 16, 2011, D.S. Stephen Fulcher receives a life-changing call that thrusts him into a race against the clock to save missing 22-year-old Sian O'Callaghan, who was last seen at a nightclub in Swindon. Steve knows from experience that he has a small window of time to find Sian alive, but his hopes are quickly dashed...