Ice keeps all secrets. On the fifth of every month, police on the islands of the Stockholm archipelago find another body. But the causes of death are different, and therefore no one believes in the connection between the murders. No one except Commissioner Desiree Rosenquist, who unofficially assigns the case to Sam Berger and Molly Bloom. Detectives discover that the dead bodies were frozen alive in nitrogen decades ago. Although Berger and Bloom must act in secret, they realize that someone wants the bodies to be discovered. But why now? Berger, Bloom and Rosenqvist are on the trail of the killer. The investigation will lead them to a criminal syndicate operating on the international stage. They will have to comprehend the depths of human megalomania... Where the desire to remain forever young and beautiful can destroy more than one person... Will Sam and Molly manage to get out of the monstrous cycle of death alive?..