Multiple directors including Dario Argento, John Carpenter and William Friedkin present their theories about why horror films are so powerful and memorable. They discuss their own work, of course, but also provide commentary on the horror movie world as a whole. However, Fear In The Dark isn't just a discourse between directors. The movie also features Psycho (1960) author Robert Bloch and psychologist Dr. Glenn Wilson, who contribute unique perspectives outside the directorial sphere.