Cipher Garden, The

In the peaceful village of Old Sawrey, set in the idyllic Lake District, a murderer strikes. Warren Howe, a husband and father of two, is brutally slaughtered with his own scythe by a mysterious hooded figure. The police manage to identify several suspects, but due to the lack of evidence they fail to make an arrest. Years later, an anonymous tip-off sparks the interest of DCI Hannah Scarlett, who heads the local Cold Case Review Team. Scarlett's investigations lead her to suspect Howe's widow, Tina. Meanwhile, someone is sending vicious poison pen letters to Tina and her two children. With…