
Benni's autistic friend only reveals that Benni was last seen in a "green submarine." The seventh bully of Bernódus is found dead after an apparent suicide attempt, and Freyr finds dozens of newspaper clippings about Benni's disappearance in one of his rooms. Freyr continues to experience his own strange incidents. Katrin refuses to stay in the house any longer, and they move to another unoccupied home nearby. The group is shaken by the discovery, but are again unable to get into contact with others. Katrin also ventures into the house's cellar, where she finds the body of Bernódus, who is carrying a picture of his mother, who resembles Katrin. As the house gets no cell phone reception, the group is unable to call for help. She begins to experience paranormal incidents around the area, including seeing Bernódus's ghost near the creek along with the missing headstone and hearing strange sounds in the house, which cause her to fall down the stairs and sprain her foot. While exploring the area, Katrin stumbles upon an old cemetery, with one of the graves missing a headstone. In the second plot line, married couple Katrin and Garðar (recovering from a recent estrangement), along with Katrin's best friend Líf, move to a small, abandoned city to renovate an old, decades-abandoned house to turn into a bed and breakfast. Freyr, who is still reeling from the unsolved disappearance of his own son, Benni, while Benni was playing hide-and-seek with a friend, begins to see visions of Bernódus. Six of the eight have been killed in mysterious accidents and were all found with crosses carved into their backs. She explains that the classmates were known for bullying Bernódus, who had crosses carved on his back from his ultra-religious, abusive father (who blamed him for the death of his wife in childbirth). Dagny shows him a photograph of Bernódus's classmates, with eight of their faces scratched out with crosses. Crosses are found carved into her back, which is assumed to be the result of abuse, but when the dead woman's husband insists he never touched her, policewoman Dagny links the death to the mysterious disappearance of a young boy, Bernódus, who vanished decades earlier. Freyr, a doctor in a city in Iceland, assists local police when an elderly woman is found hanged inside of an old church.

Soon they find that the city guards several dark mysteries. A couple moves to a small-abandoned city in Iceland to renovate an old house.The synopsis below may give away important plot points.
