This is a great 10 minute film starring Paul Naschy. It is (of course) based on Edgar Allan Poe's classic short story of guilt induced madness. The film changes the narrative quite a lot eliminating the original tale's final mad emotional explosion and substituting a certain dark element I find typical of great Euro-horror. Naschy is fantastic as is his co-star Eladio Sánchez and this is well worth your time. If you want to own a copy its one of three short Poe adaptations on the DVD below.