Ian is a young scientist who studies molecular biology. In his profession, he trusts only irrefutable evidence and verified facts. However, after meeting a young girl Sophie, he begins to doubt some truths. This pushes him to work on a theory that can change the whole world. Each person has unique eyes, the pattern of the iris of which in nature does not repeat. But not only the girl’s eyes attract Yen: a strong attraction arises between them, and they understand each other perfectly, as if they were familiar in a previous life. However, the young scientist does not believe in the transmigration of souls after death, so he is trying to find a scientific explanation for everything that happens. Life drama and deepening in the study of the iris of the eye lead Yen to an incredible discovery ...