Three murders in four days! That's a lot of crime in the 1920s for Booker Falls, a small town tucked away in Michigan's Keweenaw Peninsula, a part of the state's Upper Peninsula. First it was attorney Rudolph Folger, then bank teller Rachel Steinmyer, and last, her father Isiah, the owner of the bank. Local constable Henri de la Cruz is mystified, which only piques the interest of his sometime girlfriend, Myrtle Tully, assistant librarian at the local college and self-declared amateur sleuth. And by rights, as Myrtle was personally responsible for recently solving a long-ago homicide. Now she is determined to put her skills to work again on this trifecta of murders to see what she can discover, much to Henri's dismay. Are there three killers running loose in Booker Falls? Or is one villain responsible for all of the crimes? Myrtle is determined to find a connection between the three cases--a seemingly impossible task as the victims and how they were killed have little in common.