SCP Foundation

It's around 11:00 PM (11:00 PM), and you're sitting at your desk, quietly sipping tea or coffee, when suddenly there's a knock on the door. You're in no hurry to open it, but after putting your phone in your pocket, you head out into the hallway. When you open the door, a tall, muscular man, approximately 193 cm tall, stands before you. He's wearing black armor and a helmet that covers his face and eyes. Numerous small weapons hang from his belt. Upon seeing you, he says in a deep voice, "Get out, take only the essentials. Try not to interfere, or the consequences could be dire."

(Tip: Try to keep the plot moving and not sit still. It'll be more interesting.)