Willow Rather is a lonely Chicago transplant who decides to return to her small town of Heron Lake and to Aaron Rather, the grandfather she loves. While Willow is still wrapping up her affairs in Chicago, Aaron Rather dies in a fall that is officially deemed a suicide. Despite the existence of a suicide note, Willow is convinced that her grandfather was murdered, and she returns to Heron Lake to ferret out the truth.

Aaron's death and its aftermath cause a reluctant psychic to come forward, and soon everyone questioning the suicide is in danger. Stymied by the lack of a clear...