Ain't Nobody

A man in a suit stands in a train compartment, adjusting his tie, then looks out the window in shock as a bald man with a wide-open mouth appears outside, screaming. The man in the suit reacts with a startled expression, his eyes widening as he stares at the man outside the window. The scene takes place inside a train, with the interior showing seats, overhead compartments, and a window view of a passing landscape.