In a small French town identified as "anywhere", anonymous
poison pen letters are sent by somebody signing as "
Le Corbeau" (the Raven). The letters start by accusing doctor Rémy Germain of having an affair with Laura Vorzet, the pretty young wife of the elderly psychiatrist Dr. Vorzet. Germain is also accused of performing illegal
abortions. Letters are then sent to virtually all the population of the town, but keep getting back to the initial victim, Dr. Germain. The situation becomes increasingly serious when François, a patient of the hospital commits suicide with his
straight razor after the Raven writes to him that his
cancer is terminal. Laura Vorzet's sister Marie Corbin, a nurse in the infirmary, becomes a suspect and is arrested, but soon new letters arrive. When one letter is dropped in a church from a gallery, it becomes apparent the Raven must be one of the people seated there at the time. They are gathered to re-write the Raven's letters as dictated by Dr. Vorzet, to
compare the handwriting. Germain's lover Denise is suspected when she faints during the dictation, only for Laura to be identified by material found on her blotter. Germain agrees to sign an order committing Laura as insane; he is called away to attend Denise, who has fallen down a flight of stairs, but, before he leaves, Laura protests she wrote the Raven's first letter before Dr. Vorzet began dictating them, making him the true Raven. Just as the ambulance takes Laura away, Germain returns to find Dr. Vorzet dead at his desk, his throat cut by the cancer patient's mother as he was writing the Raven's final, triumphant letter. ==Cast==