“Lobo Feroz is a loose, revitalised adaptation of Big Bad Wolves. There were many changes that we made when you compare it to the original, given that we added new characters, plot strands and locations, and we introduced and fleshed out new themes teetering between dark comedy and police thriller. The film questions one’s principles, human behaviour and how ambiguous it can be,” the director explained to Cineuropa. “I’m very happy to be able to work with a dream Spanish cast, where everyone demonstrates their enormous talent and commitment in every scene and through every single detail.” The screenplay for the movie – written by Juan Manuel Foode Roma and Eva María Alonso Moreno – follows a police officer on the fringes of the law and a woman seeking revenge. Their paths cross, as they are obsessed with discovering the identity of the murderer behind a string of brutal crimes involving various girls. They are both willing to do whatever it takes to secure a confession, even though they will have to take the law into their own hands in order to do so. At the same time, a model detective will do his utmost to avoid irreparable errors being made and to ensure that this desperate search for the truth does not transform into the fiercest of wolves.

Fleeing from their violent father, siblings Lucía and Adrián take refuge in a remote mansion. With the help of a hidden micro-camera on a cat, Lucía uncovers a terrifying secret: their neighbors are part of a criminal network that kidnaps teenage girls to make snuff films, and they intend to get rid of the siblings. As Lucía fights to protect her brother, she must face a dark family curse that follows them into their newfound sanctuary.

Laura and her father Wilson arrive at a cottage off the beaten path in order to repair it since its owner will soon put the house on sale. They will spend the night there in order to start the repairs the following morning. Everything seems to go on smoothly until Laura hears a sound that comes from outside and gets louder and louder in the upper floor of the house. Wilson goes up to see what is going on while she remains downstairs on her own waiting for her father to come down. The plot is based on a true story that occurred in the 1940s in a small village in Uruguay. La casa muda focuses on the last seventy eight minutes, second by second, as Laura tries to leave the house unharmed and discovers the dark secret it hides.