A psychopathic killer is on the loose - and she has a score to settle with you. Detective Lindsay Boxer loves her life as a new mother until a message arrives that brings her happy world crashing down: the FBI sends Lindsay a photo of an attractive woman whose car is stopped at a stop sign. Lindsay is not fooled by the woman's beautiful exterior: there is no doubt it is Mackie Morales, the most dangerous psychopath the Women's Murder Club has ever encountered, who has recently escaped. While journalist Cindy senses her chance at the story of her life and tracks Mackie's trail across the country, no one suspects that the killer is plotting a dark revenge plan.