When Brian Karter’s mother dies, he is surprised to learn that he has inherited The Sanctuary, home to her controversial experimental addiction treatment center. Having previously believed that the building burned to the ground years ago, Brian travels there with a group of friends and meets Haley, a mysterious friend of his mother, who acts as their guide through the impressive, monastery-like building. During their tour it becomes clear that something sinister lies beneath the surface.
Despite their misgivings, they follow a secret passageway underground and come across strange and unsettling discoveries that trigger Brian’s disturbing memories of his mother’s research. Ultimately, they are confronted by her terrible secret: Brian’s mother built a revolutionary machine that cured people of their addictions but, as a side effect, those addictions materialized in the form of mutant children hungry for human flesh.
Sharing the dark bowels of the building with swarms of firefly-like creatures that they use to lure their victims into death traps, the mutant children begin a wild hunt, with the new visitors as their prey. Fighting to stay alive against the inconceivable, Brian and his friends soon realize that some things are better left hidden.
Don Carmody Productions
- There's currently no US distribution.
- Co-writer Mariano Baino was originally going to also direct before leaving the project due to creative differences.
- Mariano Baino and Coralina Cataldi-Tassoni co-wrote the screenplay together, but felt that since much had to be changed due to the influence of the producers, they had to leave the project. Here's a quote with further details: "We came up with a truly unique concept and wanted to make a genuinely disturbing, multi-layered movie. Unfortunately the producers decided to go in a completely different direction, and we decided to leave the project. No hard feelings. Stuff happens. Lesson learned. It was a labor of love for us, a project we spent years writing and developing. As artists, both of us care deeply about everything we get involved with, and we couldn’t bear the thought of making the movie the producers wanted to make. We have kept our 'story by' credit on Hidden 3D, because the movie is still based on our original story, but signed the screenplay with a couple of very obvious pseudonyms because very little, if any, of our screenplay or our original intention and vision was left in the movie they are making..."
- This is apparently the first 3D Italian movie.
- This is an English-language Italian film.