The Cabinet of Dr. Caligari
Francis, a young man, recalls in his memory the horrible experiences he and his fiancée Jane recently went through. Francis and his friend Alan visit The Cabinet of Dr. Caligari, an exhibit where the mysterious doctor shows the somnambulist Cesare, and awakens him for some moments from his death-like sleep.
Primary identity is horror: fear, dread, and grotesque dreamlike visuals (e.g., Cesare the somnambulist) drive the experience. While there is a crime/mystery frame, removing horror would fundamentally change the film.
Best for viewers looking for a light on scares, atmosphere-heavy, psychological and low-gore horror movie.
Movies with a similar horror experience.