This final paper aims to explain the simulacrum of reality shown in the movie Blade Runner, as well as the question of the identity of the main character, Rick Deckard. The dystopian depiction of the city, atypical for the science fiction genre, reinforces the impression of the threat posed by replicants - that is, a situation in which no one's identity is secure anymore. It can only be determined by an empathy test, which also becomes less and less reliable with each technological development in the film. These phenomena are analyzed through the theories of Fredric Jameson's postmodernism, Jean Baudrillard's simulacrum, and Roland Barthes' myth. Also, the paper analyzes modern technological achievements that resemble the replicants from the movie, that is, they function as more or less faithful copies of living beings. This analysis was carried out on the examples of the robot dog called Spot, the artificial intelligence system Vinci and the conversation system LaMDA, that is, by analyzing the human reaction to the mentioned systems. It was concluded that simulacrum and myth theories are applicable to some aspects of Blade Runner such as identity, and the postmodern theory is applicable to the film's atmosphere. Also, from the human reaction to the analyzed technology in the real world, it is evident how electronic and mechanical constructions have come closer to the form of living beings - to the extent that the emotional reaction to a living being is similar to the reaction to its simulacrum in the form of a mechanical construction or artificial intelligence.