As late fall descends on Minneapolis, Detective Nikki Liska is restless, already bored with her new assignment to the cold case squad. She misses the sense of urgency of hunting a desperate killer on the loose. Most of all she misses her old partner, Sam Kovac. Kovac is having an even harder time adjusting to Liska's absence, saddled with a green new partner. But Kovac is distracted from his troubles by a brutal double homicide. Liska's case--the unsolved murder of a decorated sex crimes detective--is less of a distraction: Twenty five years later, there is little hope for finding the killer who got away.