The criminal story begins with the disappearance of the groom, who disappeared on the eve of his own wedding. The whole team rushes to find him, while Igor and Polina investigate a terrible discovery in a deserted parking lot. At the same time, Polina's personal file suddenly comes to a dead end when the traces lead to a person close to her.

Investigating the brutal murder of a woman in her own apartment poses a difficult task for the team: the only witness is her nine-year-old son. To find the killer, Polina has to reveal her most important secret to Igor and prove that her gift is not fiction. Following the trail of bizarre visions, she finds herself in a world where the chess game is not a game, but a death trap. Meanwhile, Igor had some shocking news about Maxim.