In the sacred hall of Stockholm, where Nobel Prize award ceremonies have been taking place for a century, in front of a large crowd of people, a hired killer, the elusive international criminal Kitty, killed the chairman of the medical commission in cold blood. Journalist Annika Bengtzon, who witnessed the drama, is conducting her own investigation in parallel with the official investigation. The killer is known, but who is the mastermind? Annika is trying to find the reasons for the drama in the scientific circles involved in the nomination of Nobel laureates. Soon she encounters several more murders, but completely different in essence - bloody, savage. It seems that another criminal is at work, and his actions are a terrifying revenge for past humiliations.