Forensic psychiatrist Lyubavin makes a strange request to his goddaughter and psychotherapist colleague, Nelli Tarle: arrange to work in a psychiatric residential school called “The Blue Hill.” A few years ago, Lyubavin was involved in a medical examination of a man who had killed pedestrians. The professor declared him sane; after that, the culprit went through a second examination in “The Blue Hill” with the opposite result, thus avoiding criminal liability. Lyubavin’s professor reputation was called into question again when a witness in a high-profile criminal case also turned out to be in “The Blue Hill” with a psychiatric diagnosis—and soon died in an accident. It’s clear something strange is going on in the residential school, but only by getting inside can the truth be uncovered. And Nelli agrees to become a “planted man”…