It happens that something unfamiliar suddenly knocks on your familiar world, which is difficult to understand, which seems impossible to believe. What is seen in a dream comes to reality, reality seems like a dream, and what seemed to be reality suddenly turns into a fog of illusions. Is there a line between the real and the illusory, and is it possible to know for sure which side you are on? These questions may seem strange to many, and yet each of us may one day be faced with the need to find an answer to them, as happened with the hero of this book. He is young, attractive, smart, successful and seems to be happy. But one day...