Saara and Robert are living a love that is free from traditional conventions and role models. They set off to an extensive summer holiday on a lonely island in the Finnish archipelago where the tension between them escalates and becomes a fight for survival.
A mural painted with blood is found on the wall of Pasila train station, which depicts Finland's best-known serial killer Lasse Maasalo. The text in the mural, “Making the world a better place”, is linked to a voting circulating in social media, where people can vote for persons that world would be a better place without. Soon the first body is found and Sorjonen must find the person who has named himself as The Judge.