Jakob Aasen has hired his old friend, private investigator Varg Veum, to spy on his wife Rebecca, whom he suspects of infidelity. Against his better judgement Varg accepts the job, and in an ironic twist he and Rebecca rekindle their former love. Meanwhile a serial killer is targeting members of Jacob's band and their families...

Private detective Varg Veum lives, and is consulted in various criminal cases, in Bergen on the west coast of Norway.

After extricating 17-year-old Lisa Halle from a life of prostitution in Copenhagen, private investigator Varg Veum becomes ensnared in a tangle of parental neglect and bad love when he is hired to locate Lisa's boyfriend, Peter Werner.

Varg Veum promises his girlfriend that he will find her sister who has vanished.

Varg Veum is going to be a father. In a way he could never imagine, life takes on a new direction while he is searching for a missing pair of siblings in the prostitution circles in Bergen. Varg realizes that life will never be the same when he has to make a decision: Let the criminals go free or expose Karin to mortal danger.

Racial tension is running high in Bergen after a young black asylum seeker dies at the hands of the Police. Shortly afterwards, a right-wing politician is targeted by a gunman at a public rally and his wife is fatally wounded. Another member of the right-wing party, Marit Holm, approaches private investigator Varg Veum, insisting she is being stalked.

Varg Veum is summoned by the chief of police Hamre to a hostage drama on a farm outside Bergen. A married couple have been brutally murdered, and all evidence points to their foster son, 16 year old Jan Egil. The kid refuses to talk to anyone else than to Veum, who knows him since childhood. He swears he had not killed his foster parents. But there is a couple social workers at the welfare home for stray kids, where Egil had landed when he was 1 year old. They got deeply touched by the drama as defenders of the young population of the social home, for it's been plagued by a new drogue called GHB (Hydroxybutyric acid) and several kids had died on it. When Egil declares himself guilty of the murder, Hamre, the chief of police, asks Veum to get his hands out of a solved case. But Veum discovers that Egil is been forced by the knowledge a disturbing reality concerning his foster father and this drug.

To help her sick mother, a girl is hired for what she believes to be a simple delivery service. That will cause her serious problems with her boyfriend and with justice.

Abandoned and filled with a mysterious past, Holy Angel School for Girls is about to reveal its secrets of betrayal, jealousy, and vengeance. Rumours of haunting, paired with the desire to forget the painful tragedy that took place years before, have kept the truth buried with the innocent victims.

When a turn of the century prison reformatory is slated for demolition, a grisly discovery is made. Hidden deep underground beneath the west cell block is a sub-basement structure that has not been entered in 100 years. Inside are the skeletal remains of several brutally slain children. As a CSI team arrives at the prison, an even more disturbing discovery is made that will eventually unveil a legion of seven demons and their even more chilling origins: each demon is responsible for one of the seven deadly sins. Seven deadly sins...Seven deadly demons...Seven more deadly ways to die...