Fifteen years ago, a teenage girl is assaulted and raped as she picks flowers for a Midsummer's Eve ritual. Cut to the present, and a man is killed in a hit and run. He has no identification on him, he is not reported missing nor wanted by the police. At the same time, a priest and his wife are found dead in an apparent suicide.Fredrika Bergman, along with Alex Recht's federal investigation unit, is assigned to the seemingly unconnected cases. The investigations lead to a clandestine people-smuggling network: a new player on the international human smuggling market operating out of Bangkok.As the police slowly uncover the shocking hypocrisy behind the network, they begin to find a trail that runs all the way back to the 1980s, to a crime that went unreported, but whose consequences will reach further and deeper than anyone ever expected.