Avanti︠u︡rnyĭ detektiv. Romany T. Poli︠a︡kovoĭ

"Three men with strange nicknames - Joker, Warrior and Poet - appeared in my life recently, instantly turning everything upside down. Our team is investigating crimes. And now a new client has addressed us, a rich businessman Pavel Klyuchnikov, living in the village of Cherkasovo, where sinister deeds are happening. It all began with the loss of domestic animals - cats, dogs... then Klyuchnikov's daughter's friend drowned. He suspects murder. Now he is afraid for his daughter's life. And for me there is something unusual: for some time now, I have noticed different signs, nightmares torment me at night and there are weird sensations, as if someone is screwing with us. Someone is watching us all the time ..." -- cataloger's summary of the cover

In Russian