Le Corbeau [Blu-ray] [Criterion Collection]

"A small French village is plagued by a poison-pen writer, whose principal target is Doctor Germain (Pierre Fresnay). The vitriolic letters wreak so much havoc that soon neighbor turns upon neighbor. Eventually, even the doctor himself becomes one of the suspects, as the townspeople are driven to commit paranoia-fueled crimes and suicides. The actual culprit is revealed to be one of the least likely candidates. Though it can now be seen to be a subliminal indictment of the paranoia fomented...