Theatre of Blood (1973)

I think I have already mentioned my love for Vincent Price? In this violently entertaining film by Douglas Hickox Price plays the improbable named Shakespearean over-actor Edward Lionheart, performing a murder spree among the London theater critics community. And he has perfectly sound reasons for doing so, as he had been denied the previous year's Critics' award. Things like this can not be tolerated, so one after the other the critics are killed off in ways inspired by old Will, "protected" by the most inefficient police force in the world of film, Scotland Yard.
All this is as silly as it sounds, until you are starting to understand that Price uses a highly unlikely kind of theatrical subtlety by hamming it up, while playing someone who can't understand that he actually is hamming it up, this way creating something I like to call "method hamming".