When three teachers disappear without a trace, Sergeant Lindsay Boxer takes the lead in the investigation. But with no clues and no suspects, the odds of finding the women alive are getting slimmer by the second. Two impossible cases. Under pressure at work, Lindsay needs support at home. But her husband Joe is drawn into an encounter with a woman who's seen a ghost - a notorious war criminal from her Eastern European home country, walking the streets of San Francisco. When Joe's informant disappears, the two investigations collide. It will take the combined skills of Lindsay, Joe and the entire Women's Murder Club to protect their city, and themselves, from a monster.