Greta Plank, library director in the small, lakeside town of Larkspur, Wisconsin, prefers her rose-tinted glasses extra rosy, thank you very much. It's how she copes with the hard stuff in life...like her sister's death and her ex-boyfriend's deception. But Greta's cheery resolve takes a hit when she stumbles upon a dead body on her way home from work. What she assumes is a terrible accident Greta soon learns is something more sinister, and to make matters worse, a new-to-town detective cites her as not only his primary source for the case, but his top suspect.

To clear her name and save her reputation, Greta decides to do some off-the-books clue cataloging of her own. After all, asking questions is what she does best. 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.

With friends and neighbors stacking up as both victims and suspects, Greta must cross reference the facts and put a hold on her idyllic worldview if she wants to get the full story without paying the fine of her life.