Attorney Artem Pavlov accidentally saves a young woman, Karina, whose teenage daughter recently died. The police found no signs of a crime in the incident.
However, Pavlov can’t shake off suspicion about the girl’s strange behavior before her death and her monstrous correspondence in a closed group—its symbol is a blue whale washed up on the shore.
He manages to penetrate the very heart of the virtual “death group” and reach those for whom teen suicide has become a monstrous hobby and sadistic entertainment…
“Save your children!”—that is the novel’s main conclusion. They need our parental care and support very much.