-In London?

A man with a beard lies back with his mouth open, then sits up and speaks, while another man in a suit sits at a desk with a microscope, then a third man in a striped shirt writes in a notebook, followed by a close-up of a yellow New York City taxi, and finally a man lies on his back looking up as a hand holds a glass above his face. The setting shifts between a dimly lit room with bookshelves, a laboratory, an office, and the interior of a taxi.