Only a few months have passed since detective Max and his wife-lawyer Asha lost their son. Life has almost come to a standstill when Max transfers to a new job at Oslo Homicide. Max is teamed up with detective Sander, who knows the underworld of Oslo and has no illusions. Where Max is an ethical and by-the-book detective, but also perhaps a bit naïve, Sander is hardened and bitter, and a tad racist. The two butt heads immediately.

The men are called to the mysterious death of 4 young immigrant boys. There are no signs of violence or drugs, but there are eels at the crime see – strange. That night both detectives have vivid nightmares. Meanwhile, a storm hits the city. Streets and buildings are flooded.

Max and Sander discover that a fifth boy was present at the scene of the crime; he might be the key to solving the case. However, the boy turns out to be very elusive and hard to track down.

Max and Sander set out to find him which propels them into a tough journey through the underworld of prostitution, cynical human traffickers and murder. But it also opens a door into their own past sins and guilt. As they get deeper into the matter the detectives both start seeing things they can’t quite explain, dreams turn into full-blown hallucinations – and the feeling of time and place slowly disappears.

Max and Sander have to face their own worst nightmares and eventually do battle with their own misdeeds to solve the mystery. If they don’t, they risk losing their minds.