Murder investigator Evert Bäckström is convinced that crimes have been committed when a women's cranium is found on an island in the archipelago. But his investigation is countered by the police chief and when the woman's identity is clarified, the entire investigation is turned upside down.

Haparanda police officer Hannah Wester makes a macabre discovery when a dead wolf is found with human remains in its stomach. The deceased seems to have connections to a bloody gang showdown in Finland. The find soon turns out to be the first in a series of brutal events that shake the small border town to its core.

Homeless women live off salvaging food from the dumpster of a discount grocery store. Meanwhile, the store's employees struggle under hardening working conditions. Complex relationships, conflicts and dependencies arise between the groups.

Several people with amnesia realize they may have been involved in something sinister on a cosmic scale.