M and Ministry Of Fear have dead silent intros. The silence is lengthy enough to be slightly uncomfortable for the viewer. It demands an immediate tone for suspense. The clock towers over the room and casts it's own shadow, which feels like time is a character facing off with the protagonist. The lighting, the character set up, and the asylum reveal shows a confident overload of film noir aesthetics.
Marlowe added an element of danger to his shakedown flip by locking the door & the purse search. Control is his "badge".