Greta Plank, library director in the small, lakeside town of Larkspur, Wisconsin, prefers her rose-tinted glasses extra rosy. But Greta's cheery resolve takes a hit when she stumbles upon a dead body on her way home from work. A new-to-town detective cites her as not only his primary source for the case, but also his top suspect. With the help of her fellow librarians and her lawyer mom, Greta flips through the pages of the murder, uncovering details about Larkspur's real estate market and the deceased's rare book collection as she tries to understand why anyone would have authored his death.