DS Marquis Anderson of Scotland Yard is fresh off a high-profile case and contemplating a vacation to spend with his family. As luck would have it, he is put on the murder case of Lord Harry Dawson, whose murder creates shockwaves throughout the British political system. Before Anderson and his partner, DC Lizzie Allen are even yet to start the investigation, three more political and social elites are murdered. Join DS Anderson and DC Allen, who rush against time to protect the next targets, Earl and Countess Walker, before this ruthless killer checkmates this chess player-turned-cop!