In 1942, six people destroyed Anna Mathesons family.Twelve years later, shes ready for retribution.

Under false pretenses, Anna has lured those responsible for her familys downfall ontoa luxurytrain from Philadelphia to Chicago,an overnightjourney of thirteen hours. Her goal? Confront the people whove wronged her, get them to confess their crimes, and deliver them into the hands of authorities waiting at the end of the line. Justice will at last be served.

But Annas plan is quickly derailed by the murder of one of the passengers. As the train barrels through the night, it becomes clear that someone else on board is enacting their own form of revengeand that they wont stop until everyone else is dead.

With time running out before the train reaches its destination, Anna is forced to hunt the killer in their midst while protecting the people she hates the most. In order to destroy her enemies, she must first save themeven though it means putting her own life at risk.