There is a particular subgenre of kitschy horror film that comes out of countries like Spain and Italy. Usually something to do with some dark legend, a dark devil, and a group of hot young people who get caught up in the madness. Spanish director José Luis Alemán continues with his Valdemar series in La Sombra Prohibida, based on H.P. Lovecraft's work. You have the ingredients for a cult Spanish horror film, but unfortunately the film doesn’t entirely work out.