A serial killer targets Stillwater, Minnesota on Lucy Ruediger's first day as Chief of Police. Crime of any type is unusual in Stillwater and the first of several killings hits hard. Repeatedly, a young blonde woman, topless, wearing nothing but aviator wings engraved with the word "wingman" pinned to her flesh is found leaning against a tree, overlooking the St. Croix River. Before the second victim is found, a girl of 17 matching the description of the others to follow is reported missing. But each new victim is not the missing 17-year-old.Ruediger, with the assistance of local newspaper reporter, Dan Rimmer, follows clues in multiple directions, taking her to the arrowhead portion of Minnesota, to marinas on the St. Croix River, to Sioux Falls, South Dakota and ultimately to illegal puppy farms in Minnesota.As a new police chief, she's perplexed by the matching appearance of the missing 17-year-old. Has the body not been found or was she looking at a second crime of kidnapping, unrelated to the serial murders now classified as the Wingman Killer.