The novel on which the film Musa is based, a film directed by Jaume Balagueró, an overwhelming intrigue where the real and the imaginary come together in a perfect and disturbing world. A unemployed literature professor who tries to overcome a terrible tragedy begins to suffer horrific nightmares. In his dreams a triple murder appears, an unknown house, a woman who begs for his help. You will soon discover that the violent images that assail you during the night are much more than simple fantasies ... Review: «Lady number thirteen is a beautiful novel, written by someone who really loves, knows and understands poetry, while A wonderful horror story. Its combination of beauty and violence fascinates me. »Jaume Balagueró