Frenzy: the falsely-accused man, 2
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Following the murder of Brenda Blaney, a carefully-choreographed scene in an alley (chosen as a setting for its multiple entrances, exits, and curves) provides the identification that leads to his arrest.
Blaney from the point of view of the returning secretary.
After the secretary enters the doorway, the shot of the empty alley is held for nearly half a minute before her scream is heard and startles two passersby (who after an initial reaction keep walking).
Below: After his escape from the prison hospital ward, Blaney heads for Rusk's flat because "I might as well do what I'm being put away for" (a line we hear twice).
The hand sliding up the bannister, according to Hitchcock, shows a murderer going up the stairs.
After swinging the tire iron, Blaney discovers that, rather than killing Rusk, he has battered another victim of the necktie murderer. Inspector Oxford then discovers Blaney standing over the woman's body: he has "done what I'm being put away for" in a more literal sense than intended.