The Absolution is the third installment in Queen of Icelandic crime fiction Yrsa Sigurdardóttir's series about the psychologist Freyja and the police officer Huldar.
The police find out about the crime the way everyone does: on Snapchat. The video shows a terrified young woman begging for forgiveness. When her body is found, it is marked with a number "2".
Detective Huldar joins the investigation, bringing child psychologist Freyja on board to help question the murdered teenager's friends. Soon, they uncover that Stella was far from the angel people claim, but who could have hated her enough to kill?
Then another teenager goes missing, more clips are sent to social media, and the body with a "3" is found. Freyja and Huldar can agree on two things at least: the truth is far from simple. The killer is not done yet. And is there an undiscovered body carrying the number "1" out there?