From Alfred Hitchcock Wiki

Nothing's quite a shocking as a knife plunging into the victim's back!

• Blackmail (1929) - the murder weapon, and the use of the word "knife" at the breakfast table
• Sabotage (1936) - the knife that Mrs Verloc uses
• The Man Who Knew Too Much (1956) - the knife used to kill Louis Bernard
• North by Northwest (1959) - the knife plunged into Lester Townsend's back
• Psycho (1960) - the frenzied attack in the shower
• Torn Curtain (1966) - the knife that doesn't quite kill Gromek

Film Frames

Selection of film frames of knife (click image to view larger version or refresh thumbnails)...