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A gruesome triple murder has taken place in a Stockholm suburb, and Police Commissioner Jonah Linna is on the case. Only one witness to the horrific massacre remains alive - a fifteen-year-old boy whose family was murdered in front of him. The perpetrator also wanted to kill the boy - he received more than a hundred stab wounds and fell into a state of shock. Desperately searching for clues, Commissioner Linna sees only one option: hypnosis. He calls on Dr Erik Maria Barka to hypnotise the boy, hoping to see the killer through the eyes of the victim.

But Dr Bark promised that he would never do such work again - it is not only ethically questionable, but also associated with very unpleasant memories for him. By breaking his promise and hypnotising the victim, he unleashes a long chain of terrifying memories...

The detective Jonah Linna thriller series is an international sensation that has already sold a total of 12 million copies in more than 40 languages. Now, translated from Swedish, the series is available to Ukrainian readers.