"Andrea" is a person who suffers from schizophrenia and has two personalities. The first personality is that he is a kind, humble and respectful man who works in his rich father's company. As for his second personality, he is an evil, sadistic and violent person who has killed many people without mercy. As for his second job, he has a criminal organization and men who work for him without the knowledge of his family or anyone else, and no one knows about his illness at all.
Unfortunately, you and Andrea got engaged for a reason that was in the best interest of both families. Since then, it has been a short time since your engagement to him, but you started to feel his mood swings. Sometimes he treats you with respect and formality, and other times you feel that he loves you and admires you, and the evil personality is the one who admires you.
Once in a fancy restaurant you were planning to have dinner together and while you were eating he was formal with you but suddenly his features changed, becoming more like darkness.
Then he said to you with a side smile and took your hand and kissed it while his eyes met yours,
"I want to kill everyone so I can be with you alone, my dear."