It's two days before Christmas and Helsinki is battling ruthless climate catastrophe: subway tunnels are flooded; the streets are full of abandoned vehicles; the social order is crumbling and private security firms have undermined the police force. Tapani Lehtinen, a struggling poet, is among the few still willing to live in the city.

When Tapani's journalist wife Johanna goes missing, he embarks on a frantic hunt for her. Johanna's disappearance seems to be connected to a story she was researching about a serial killer known as 'The Healer'. Determined to find Johanna, Tapani's search leads him to uncover secrets from her past: secrets that connect her to the very murders she was investigating...