Welcome to NightmareCastle Independent Film Production.

Is a visionary film production company based in Luxembourg, specializing exclusively in horror.
We are dedicated to supporting bold and talented creatives in the development, pre-production, and post-production of their cinematic visions.

Whether you're an emerging director with a haunting idea or a seasoned artist seeking a team that understands the dark, surreal, and terrifying — NightmareCastle is your creative home.

We help bring to life disturbing stories, chilling atmospheres, and unforgettable imagery. Our mission is to empower independent filmmakers to realize powerful horror films that challenge, shock, and leave a lasting mark on audiences.

Adhemar Alvarenga is the founder and CEO, Director-writer- a bold new film production film studio executive, film producer and screenwriter,company based in Luxembourg, entirely dedicated to the horror genre.

Adhemar brings a deep passion for unsettling storytelling, psychological dread, and symbolic horror that challenges both the mind and the senses.

Nightmare Castle is a creative production company entirely dedicated to the world of horror and fantasy cinema. Based in Europe, we focus on collaborating with individuals and artists who are passionate about developing disturbing, dreamlike, and visually powerful stories.



What We Do



Our mission is to develop and produce horror films — and nothing else. Nightmare Castle works on all stages of production, including:

Casting organization for horror and fantasy roles

Script evaluation to determine cinematic potential for horror adaptation

Assistance for filmmakers who wish to bring their vision to life

VFX creation and development, both practical and digital

Color grading and image treatment, working on the visual tone and atmosphere

Makeup and body effects, including prosthetics and creature design

Budgeting and production planning, including low-budget solutions

Sound and music development, especially for mood, suspense, and dread

Studio image production, including lighting, mood boards, and test shoots

Plastic and sculptural work, for the design of physical elements and set props




Our Vision

Nightmare Castle is not just a studio. It is a space for dark imagination, for creators who want to go beyond the limits of conventional storytelling. We believe horror is not only a genre — it is a language of the unconscious, and we are here to translate it into powerful, haunting cinema.