
Empathetic, meticulous and relentless - the only thing to escape Larvik detective William Wisting in his hunt for Norway's most notorious criminals is a happy family life. And when two mysterious deaths interrupt Wisting's Christmas, it is the beginning of a showdown with the deadliest killer of them all.





William Wisting, a widowed senior detective in the Norwegian coastal town of Larvik, leads a murder investigation in which a body is found in snow underneath a Christmas tree. The clothes on the corpse show that the person killed was an American. An FBI team is immediately flown to Larvik and an international hunt for a serial killer begins.Meanwhile, William's daughter Line, a journalist, investigates the lonely death of an elderly neighbour for an article. When her twin brother Thomas returns to a usually sleepy Larvik to celebrate Christmas with the family, he finds both William and Line deeply preoccupied with their investigations.
With FBI agents Griffin and Bantham added to the team, the investigation is making progress, but Griffin cannot adjust to Larvik's sleepy ways and finds some of her new colleagues unprofessional.Meanwhile, Line thinks there's something suspicious about the death she's writing about, but William is convinced she's getting ahead of herself.
Wisting's team continue to search the bottom of wells all over town for more gruesome clues. They realise that the killer could also have been operating across the border in Sweden, potentially multiplying the number of victims.Line's investigation is also becoming more complex, meaning Thomas has his work cut out trying to unite the family at Christmas.
Maggie pursues some unpopular, and not very Norwegian, investigative methods. Meanwhile, a discovery is made in the Larvik countryside. It's the breakthrough the investigation needed but also the one they all feared.Line continues interviewing Viggo's old schoolmates and meets some interesting local characters along the way.
With the help of the Americans and the Swedes, Wisting's team have found more and more victims, but now Line herself has been kidnapped and Wisting faces a race against time to rescue her from the man they have been tracking all along.
Wisting and his team are basking in the success of their recent case. But from out of the blue comes an accusation that they, and specifically he, tampered with evidence in a case 17 years ago.William is fighting for his reputation and his career.
Internal Affairs investigate Wisting, and following his suspension, Torunn heads the investigation into the disappearance of a young woman. Line runs into an old flame while working on her Ravneberg story.
Wisting fights for his career and reputation, by conducting his own secret investigation into the Cecilia case. Torunn suspects Linnea is responsible for her own disappearance, but her parents are convinced she is in danger.
Suspended detective Wisting resorts to desperate measures to prove his innocence, while Internal Affairs puts his police department under intense scrutiny. Benjamin searches for suspects in Linnea's disappearance.
Wisting and former colleague Robekk join forces on the Cecilia murder case, but will they figure out who was behind the evidence tampering? When Line uncovers a mysterious videotape connected to her father's case, clues point to Linnea's abduction. Will they manage to save Linnea before she is killed?
William Wisting and his team are hit hard when a crime scene inspection with serial killer Tom Kerr goes horribly wrong. Wisting's daughter Line now has to deal with the consequences of her documentary causing it all.
Wisting tries to gather the team after the tragedy that has befallen them. He is forced to cooperate with Kripos investigator Stiller in the hunt for the mysterious helper.
A new disappearance makes Wisting and Stiller fear that the killers are about to flee the country. But has the new victim really been kidnapped? A new clue causes the police to arrest a suspect.
Line's shocking findings overturn the police's theory of "The Other". The perpetrator gets rid of loose threads and time is running out. Wisting discovers the secret that his daughter has kept hidden from him.
Wisting and his team are alerted to a gruesome crime scene in Larvik. The severed head of a young asylum seeker is found on a stake in the middle of the square. FBI agent Maggie Griffin returns to assist in the case.
When a body turns up in the net of a local poacher, the two murders are linked. Will this lead the investigators to Layla's remains? Line suspects that Wisting has had a relationship with the manager of the care centre.
Maggie is forced to share information she has previously kept secret from Wisting. The investigation takes a completely new turn, leading Wisting and Maggie on a new hunt across the border into Sweden.
In Sweden, Wisting and Maggie find a previous victim. Together with the Swedish police, they are drawn into a fierce police action, and the final showdown is both intense and surprising. Can Maggie and Wisting still trust each other?
Six-year-old Clifford Greenwood vanishes from the family hotel Wildenvey and an employee is found dead. Detective William Wisting believes the boy was kidnapped. The Greenwood family is shocked, but Wisting discovers they have secrets.
Clifford's family receives a ransom demand and a cryptic message. The clues suggest Clifford has been taken as a revenge against his grandfather. Wisting's daughter, Line discovers her ex, Tommy, has fallen into very bad company.
Wisting is under pressure, still without leads. Clifford's parents await contact from the kidnapper but receive a mysterious message that leads them to a gruesome discovery. It's clear the kidnapper wants to tell them something, but what?
The police initiate a manhunt for the kidnapper, who is revealed to have a strong personal motive. As time is running out, Wisting must dig into a tragic event from the distant past. Andrew is forced to participate in a high-stakes game.
While recovering from a severe injury, Wisting receives an anonymous letter in the mail. The cryptic content leads Wisting to suspect a possible injustice in an old murder case where a 17-year-old girl was killed, and her ex-boyfriend was convicted.
A new anonymous letter leads to fresh evidence, but not everyone is happy to see the old murder case back in the spotlight. Wisting realizes he is being opposed by powerful forces within the police, as he keeps searching for the secret messenger.
A breakthrough in the case takes Wisting to Vilnius for a meeting with Interpol investigator Harriet Dunn. What is meant to be a simple questioning of a suspect becomes far more complex for both of them - both professionally and personally.
New DNA evidence appears to solve the murder of Tone, but Wisting still feels that something is amiss. Wisting and his colleagues must call on all of their skills and experience to avoid a dramatic and dangerous situation.