Like Fritz Lang, David Fincher or Bong Joon Ho before him, talented debut filmmaker Lado Kvataniya uses the concept of police detective vs serial killer for an excitingly stylised, macabre and haunting narrative, that ultimately revolves around the identity of an era: in this case, the late 1980s Soviet Union. With Glasnost and the end of communist rule, the West also learned of the (unsurprising) fact that there were serial killers in Russia too – the most notorious case probably that of Andrei Chikatilo, nicknamed the Rostov Ripper, or the Russian Hannibal Lecter.
　　Based on these and many other sources, Kvataniya and screenwriter Olga Gorodetskaya constructed an immersive psychological puzzle, jumping back and forth in time, to reveal ever new-possible motives for the actions of all the protagonists. It all starts in 1990, when Detective Issa Davydov is celebrating his promotion and receives a call, reporting a crime that looks precisely like the ones of the serial killer that he famously captured some years before ...

　　The morning Stella decides to take her own life, a stranger knocks at her door claiming the guest room he booked for the night. Surprised but charmed by this man who seems to know her very well, Stella decides to let him in. But when Sandro, the man who broke Stella's heart, joins them at home, this odd situation turns immediately into chaos.