Every day we come across hundreds of people: with fellow travelers in morning traffic jams, in subway crowds, in cafes at lunchtime, in evening restaurants, shops and supermarkets. We make eye contact, sometimes communicate, and almost immediately part forever, without even remembering their names. Roman is an ordinary thirty-year-old guy living among us, ordinary residents, in a huge metropolis. He is practically no different from us, except for one detail. Nobody knows him. Nobody remembers anything about him. He is, and he is not. Three years ago, a mysterious incident happened to him that changed his whole life. Now, no matter who he communicates with or spends time with, they completely forget him irrevocably. 290 seconds - exactly how long passes after contact with Roman, when memories of him are completely erased from memory. Who is he, a man without a past and a future? Overcoming loneliness and inner emptiness, Roman tries to adapt among people in a new capacity, while continuing to search for the root cause of change. Suddenly, he is on the trail of an extremely dangerous person who brings evil, with similar abilities. Finding himself in a dizzying whirlpool of events, Roman will have to unravel a tangle of secrets and come face to face with a truth for which he is completely unprepared. Is it possible, despite everything, to survive and reach the final solution? Here is his story.