The Theory of Gaseous Light

On the outskirts of Moscow, in a remote area of gray, moldy five-story buildings, lives a killer - a man whose fear has grown into paranoia over the years. Kirill suffers from hallucinations and performs ritual sacrifices in the basement of an abandoned hospital.

Only eighteen-year-old Kristina has been accidentally saved. However, she is now haunted by obsessive visions and a suddenly revealed truth about her deceased mother: once, she was in love with Kirill, who has become a heartless monster. But is he really as heartless as he seems?..