The Man Who Knew Too Much (Alfred Hitchcock, 1956). Empty, dreamed streets in London. Vertigo’s green light (it meant death) seen on the porch of a hotel in Marrakech. Dream scene: a small group watches you as you make an important telephone call. Doubles, mistaken identity, repeats. The ghoulish assassin with a mummified face. The sense that being abroad could easily slip into some kind of terror.