Młody detektyw Lauri Räihä bada dwa morderstwa w swoim konserwatywnym fińskim miasteczku. Jednocześnie musi stawić czoła trudnej prawdzie o swojej przyszłości i teraźniejszości.
It is proved that the deaths are murders. Meanwhile, Ritola is tormented with jealousy, Meeri ends up in a life-threatening situation and the killer is on the move.
An ex-mercenary suffers from his trauma at the Millennium Centre. Ritola's nightmare continues as he tries to investigate the attack on Meeri and gets a lead on the tech company owner.
The religious community supports the tech company owner as he celebrates selling his business to an American buyer. Ritola takes a big risk to protect Meeri after they reconcile.
The mercenary is arrested and tells Ritola some surprising things about the dead woman. Ritola makes a mistake that leads to irreversible consequences.
Ritola discovers the devastating truth about his marriage, while the Millennium women go too far and the men lose patience. Ritola finally figures out who the killer is - But will justice be served?