What

A person in a black outfit bends over a bucket while another person in a white shirt, tie, and horse mask stands behind, holding them; the scene is set in a graffiti-covered alley with debris on the ground. The person in the horse mask holds a bottle and appears to pour something into the bucket as the other person remains bent over. The scene then cuts to a man with glasses in a room with computer monitors, who gestures with his hands and looks surprised as the word "WHAT" appears on screen.