Genealogist Torie O'Shea is grief-stricken when she receives the news that her mentor and boss Sylvia has passed away at the age of 102. Sylvia leaves all her worldly possessions to Torie, including the Gaheimer House, the site of the local historical society. Torie's suspicions are aroused when she learns that Sylvia hired a private detective and installed a security system just prior to her death.