Callum and Daniel are twin brothers. Sophia Langley is engaged to Daniel, but he dies in a shipwreck. She puts on mourning, no longer hoping to find love. But one fine day Callum appears on her horizon. He had changed - he became an indifferent and narcissistic stranger, but Sofia, seeing him after a long separation, experienced a strange thrill. Her emotions had nothing to do with the chaste tenderness she felt for Daniel. Now passion has awakened in her. As for Callum, he has his own plans for Sofia. He is driven by cold calculation - the desire to produce an heir to the ancient Chatterton family. Callum offers the girl a deal - marriage. Passion and calculation enter into a duel.