Chris decided to ignore the knocking, but whoever it was just wouldn't go away. He sighed, then stood up. He quickly wrote himself a note, just in case it wasn't Natalie. If she came back and wondered where he was, then at least she'd know what happened. Before she left, Chris gave her his spare key to his apartment. He figured that since they were basically in the same predicament, it might be a good idea for her to have access to the apartment, just in case anything went terribly wrong.
After writing the note, he approached the door, took a deep breath, and opened it.
