Licántropo

Licántropo, also known as Licantropo: The Moonlight Murders or Lycanthrope: The Full Moon Killer, is a 1996 Spanish horror film that is the 11th in the "Hombre Lobo" series about the werewolf Count Waldemar Daninsky, played by Paul Naschy. Following his near-fatal heart attack in 1991, Naschy wrote the screenplay for this film as a sort of therapy while he was recuperating from his surgery. He filed it away for future use and the script lay dormant until producer Primitivo Rodriguez contacted Naschy in 1996 and asked him if he had any ideas for a new horror movie.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.