Private detective Stas Severin receives a task from his old friend - to find the murderer of his wife. From the incoherent explanations of the client, Stas understands that we are talking about a large inheritance of the famous antique collector Arefyev, the applicants for which make up the circle of suspects. The mysterious key given to the detective should help in solving the mystery.
Kirill's life is rapidly going downhill: for the last few years he has been living "on autopilot", mourning his happy past every day. Suddenly, he receives an offer that he cannot refuse. The crime boss hires him to find and stop the killer who wants to kill him. For Kirill, this will not just be a job, but a long—awaited revenge - three years ago, his daughter died because of this man. But the killer doesn't kill himself — a deadly virus does all the work for him. It's already in the victim's blood, and no one knows how to stop it. No one except him, a former lawyer who, by the will of fate, found himself in the service of the mafia.
Alexey Kuvaev returns to his native land after the army. He finds the deserted house of the woman who raised him as her own son. Alexey believes in new people, it seems to him that he is gaining what he lost a long time ago - a family. But the price for his adult life is a merciless solution to the mystery of the tragic death of his parents. The pain that he has already come to terms with will one day come back into Alexey's life.
Moscow opera Vasily Sharonov is a tough and uncompromising person. For these qualities, as well as for the cold look and stern expression on his face, his colleagues have long nicknamed him the Sheriff. Because of the difficult nature of the Sheriff, he was once kicked out by his wife, and now his teenage son is avoiding him. Because of his character, neither his subordinates nor his superiors like him.
Young Wolfhound is a 2006-2007 Russian adventure fantasy TV series, a prequel of Wolfhound. Series was loosely based on the novels by Maria Semyonova about Wolfhound's young life.