Twelve years after their divorce, Scotland Yard Superintendent Duncan Kincaid receives a phone call from his ex-wife Victoria asking for his help. While working on a biography of the late poet Lydia Brooke, she has uncovered information that has her convinced Lydia's suicide five years ago was really murder. As Duncan begins his investigation, another murder occurs closer to home. Now he finds himself frantically searching for clues in Lydia's complicated past to find the killer before he strikes again.