When Nina's friend Karin gives her a key to a public locker in a Copenhagen train station, Nina opens it to find a suitcase. When Nina opens the suitcase, she is shocked to find a drugged, barely alive three-year-old boy. Before Nina can even decide what to do next, Karin is murdered, forcing Nina to take the boy and go on the run before whomever is responsible for this all goes after her next.

Natasha Doroshenko, a Ukrainian mail-order bride who has been convicted of the attempted murder of her Danish fiance, escapes custody on her way to an interrogation in Copenhagen's police headquarters. That night, the frozen, tortured body of the fiance is found in a car, and the manhunt for Natasha escalates. The police aren't the only ones on her trail; Natasha's past has finally caught up to her and she is being pursued by the Danish Secret Service,...