Season 4 was filmed across multiple locations, including Moscow, Saint Petersburg, and Kislovodsk.
Following a lead about a local spa and mysterious IV drips, the women compare autopsy reports of Volynin and another victim, Azarov, to find a common link. Season 4 was filmed across multiple locations, including
The protagonists, Anna, Sofya, Irina, and Katerina, investigate why dogs attacked their own owner, Volynin. They suspect his scent was artificially altered so the animals wouldn't recognize him. Season 4 was filmed across multiple locations, including