Would you risk your life to find a killer?The year is 1980. In the beautiful Berkshire Hills of western Massachusetts, Rose Hudson, former cryptographer for the British government, discovers a dangerous secret while attending a yoga retreat. Rose's relationship with the town's chief of police, Richard Prince, leads her to help investigate the baffling deaths of a star high school athlete and a beautiful yoga instructor. Using her skills, Rose discovers an unsavory event in the yoga center's past, putting her life in grave danger.