A Minnie Markwood Mystery. Minnie Markwood can out-sleuth Miss Marple any day of the week - in her imagination. But when a real killer begins to target Minnie and her young sidekicks, reality trumps imagination big time. Who's buying up all the red shoelaces at the mall and stalking a cashier? Is it the killer who terrorized Minnie on the highway and kidnapped her coworker? It soon becomes frighteningly clear that Minnie's onto something, and The Red Shoelace Killer's days are numbered.