Allenby House has become an MI6 Safe House for visiting dignitaries and spooks. Geoffrey Larkin, a guest of Allenby House, is invited to play in the local cricket match. Old rivalries are rekindled and, as referee, it is up to Barnaby to keep the flames under control. When Larkin is found dead on the cricket pitch, Barnaby finds all avenues blocked by the official Secrets’ Act and MI6 red tape.