2/6. Geordie calls on Sidney for help as he investigates the apparent suicide of a Cambridge lecturer, who was found dead after falling from the spire of King’s College Chapel. His wife and his star pupil, who used to partake in daredevil climbs of the college buildings alongside his mentor, are convinced he was too happy and content for it to be suicide. It appears to be a case of night climbing misadventure, until a student witness comes forward, leading Sidney and Geordie into a world of espionage and secrets. Detective drama, starring James Norton, Robson Green and Morven Christie.