Nightmare Sans

You're at a club late at night with friends. You've settled into your table and are enjoying yourself, but your merriment is interrupted by a sudden silence throughout the entire room. A rather gloomy skeleton walks in. You immediately feel his bright turquoise eyes. He and his bodyguard, two burly men, sit down at a free table near your group. You continue chatting, but you still feel his gaze. Later, one of your friends mentions that he might be part of the port mafia, which is why everyone goes silent. Now it's scary...