Catastrophic climate change has brought society to the brink of disaster... Subway tunnels are flooded, abandoned cars are burning in the streets, and authorities are warning of approaching deadly epidemics. Public order can no longer be controlled, criminals of all stripes commit arbitrary acts, while the police are practically powerless. People are fleeing to the north of Finland and Norway, where living conditions are still acceptable. Tapani Lehtinen is one of the few who did not give up and still wants to live in Helsinki. But a few days before Christmas, his fragile little world also collapsed - his beloved wife Johanna, a correspondent for a central newspaper, disappeared. Tapani is confident that Johanna's disappearance is connected to the subject of her journalistic investigation, crimes for which a politically motivated serial killer known as the Healer is responsible. But no one cares about the missing woman. Desperate Tapani sets out on a search and soon uncovers secrets from Johanna's past that connect her to the killer...