The freezing Montreal winter turns even colder when blue-eyed cop Andrew Ryan is too busy mounting a sting operation and squiring a fetching youngster around to pay much attention to the forensic anthropologist who's his sometime squeeze. Temperance Brennan can't even turn to her chum Anne for much solace because Anne, on a leave of absence from her marriage, is needy herself. Work is no consolation either, since Tempe is facing a riddle she can't solve.