When crime correspondent turned war reporter Harry Flynn returns to Britain from Singapore in 1945, he takes a quiet job with the Festival of Britain, a government-funded endeavor aimed at celebrating the nation’s creativity, grit and ingenuity. There, he joins a team of misfits and eccentrics as they help to ready the Festival for launch. When a Frenchwoman goes missing, Flynn becomes the central suspect in her disappearance --- and possible murder. He was the last person to see her alive, yet he has no memory of the evening they spent together. As evidence against him mounts, Flynn begins to wonder if he actually might be to blame. To make matters worse, he is surrounded by people who have their own secret agenda.