"In 2001, three-year-old Dina is killed in a tragic car accident. Not long thereafter Dina's mother dies under mysterious circumstances, and Dina's father Jonas is convicted of her murder. Now it's 2016, and the cold case ends up on the desk of Detective Henrik Holme, who tries to convince his mentor Hanne Wilhelmsen that Jonas might have been wrongly convicted. Holme and Wilhelmsen discover that the case could be connected to the suicide of an eccentric...

"On an early April afternoon, a bomb goes off in the Islamic Cooperation Council's offices in Oslo, killing twenty-three people. The Police and Security Service suspect an extremist organization to be responsible for the attack, a suspicion that grows stronger when threats of yet another, bigger explosion during the planned celebration of the Norwegian constitution reach the authorities. As a special adviser on cold cases, Hanne Wilhelmsen has cut...

Small-time drug dealer is found battered to death on the outskirts of Oslo. A young Dutchman, walking aimlessly in Oslo, covered in blood, is taken into custody but refuses to talk.

The case leads her to team up with local detective Ingvar Nymann and together they set about uncovering the clues to these shocking crimes. As the number of mysterious murders starts to increase, Inger Johanne is driven by her need to protect her daughter and starts noticing a pattern. But her discovery of the killer's weakness and the connection to a ruthless international network unintentionally turns the entire threat towards herself and her family....