He was calm and that seemed to make Donna swell with annoyance. But then he was telling her what to do - the nerve! - and she found herself walking. If he were a serial killer, he was probably one of the more polite of his kind. With her arms crossed stubbornly over her chest, she power walked away from him. And then, quite curiously, found herself turning around.
Glancing at the stranger with confusion in her eyes, Donna tried to walk away from him again and found the same result. Every time she got too far, she stopped and turned.
Just as briskly, she walked back to the man. She wasn't any less agitated, but her voice was a bit lower when she spoke. "What the hell is going on? Who the hell are you?"