Police profiler Arnar is sent back home from Oslo to his native Iceland to investigate the country's first serial killer case. He teams up with the local senior cop Kata.
Cast:NÃna Dögg Filippusdóttir , Björn Thors , AldÃs Amah Hamilton , ArndÃs Hrönn Egilsdóttir , Gunnar Bersi Björnsson , Edda Björgvinsdóttir , Tinna Hrafnsdóttir , Sigurður Skúlason , Bergur Ebbi Benediktsson , Ottó Gunnarsson , Anna GunndÃs Guðmundsdóttir , VÃkingur Kristjánsson , KristÃn Þóra Haraldsdóttir , Sigurður Sigurjónsson , Valur Freyr Einarsson , Julia McIlvaine , JP Karliak , Will Collyer
Following a brutal murder at Reykjavik's harbor, an ambitious but frustrated police detective is tasked with tracking down the killer.
With a new detective on the team, police turn their attention to the wayward son of one victim and search for a connection to the other.
A witness offers a much-needed - but distressingly vague - lead. Arnar scours a new video for clues. Kata grows more concerned about her son.
Arnar suffers a loss and Kata crosses a line. Meanwhile, public pressure to solve the murders grows stronger following a televised interview.
As Kata and Arnar make headway in their search for a suspect, a leak to the press puts the investigation - and lives - in jeopardy.
After the Valhalla case is seemingly wrapped up, Arnar learns of several odd inconsistencies regarding one of the murders.
As new evidence points them down a dark path, Kata and Hakon make a bold request of their higher-ups. Meanwhile, Arnar rethinks his family.
With the heinous truth about Valhalla out in the open, those responsible take drastic measures in an attempt to avoid detection.