Simon Sax could be a lucky guy. He’s young, smart, and about to become a billionaire if he sells his great invention, an astonishing algorithm, to a multinational. And yet, he feels alone. His success contrasts with his utter lack of social skills. Until one day he overcomes his prejudices and joins a dating website, where he falls head over heels in love with Irina, with the inexperience and passion of a teenager, despite the thousands of kilometers that separate them. But she, marked by an enigmatic scar on her cheek, carries a dark secret.