"Das Unheimliche", or, as it is known to the Ukrainian reader, "The Stranger", is one of the most famous works of the outstanding Austrian psychoanalyst Sigmund Freud. In his fundamental essay, the author highlights the psychological aspects of the feeling of unfamiliarity and restlessness that arise when encountering certain phenomena or objects. Freud reveals the essence of this phenomenon through the lens of psychoanalysis, viewing the unfamiliar as something that arises from the subconscious and can cause a strange discomfort in a person. This book not only expands our understanding of the psyche and mental processes, but also challenges the reader to think deeply about the essence of human existence and mental mechanisms. "The Stranger" is an important and memorable book that will leave a mark in the heart of everyone who is interested in psychology and philosophy.