Alien Spa (2026): Cast, Story and Release Details

Prepared by Movies Dock Editorial

Alien Spa follows three siblings mourning their parents as a planned spa day becomes an extraterrestrial ordeal. Blending horror, science fiction, comedy and adventure, the 2026 film is written and directed by Jacque Rabie and runs for 74 minutes.

Alien Spa places family grief inside an unusually dangerous setting: a spa day that goes catastrophically wrong. The film follows three siblings whose attempt to spend time together leads them into an experience with distinctly extraterrestrial complications.

Written and directed by Jacque Rabie, this English-language feature combines horror, science fiction, comedy and adventure. With a 1-hour, 14-minute runtime, it offers a compact genre blend built around aliens, a spa and an out-of-this-world threat.

Alien Spa movie details

Story without spoilers

The story centers on three siblings who are grieving the death of their parents. They arrange a spa day, but what should be a restorative outing turns into a frightening encounter connected to space and alien forces.

The supplied synopsis keeps the larger circumstances under wraps, so the film’s specific dangers and developments are best left for viewers to discover. Its premise suggests a collision between personal loss, an unconventional setting and science-fiction horror.

What to expect

Alien Spa is identified as a horror, science fiction, comedy and adventure film. That combination points to a deliberately mixed tone, balancing an ominous alien premise with comic elements and the heightened energy of an adventure story.

The available keywords reference an alien, an alien spaceship and an evil presence, while also suggesting a knowingly trashy, so-bad-it’s-good sensibility. These descriptors indicate a film that may embrace eccentric genre conventions rather than presenting itself as a straightforward spa drama. The central trio and the unusual setting remain the clearest anchors.

Cast and creative team

Mariana Rey-Rosa plays Mertyl, with Hannah Schoen as Lucy and Jacob Vaus as Henrik. The cast also includes Reid Schmidt as Steinback, Charles Karafotas as Prince, Sta Sbarski as Mother and Dash Victoria as Cornelius.

Jacque Rabie is credited as both director and writer, giving the film a single creative lead across its screenplay and direction.

• Mariana Rey-Rosa as Mertyl
• Hannah Schoen as Lucy
• Jacob Vaus as Henrik
• Reid Schmidt as Steinback
• Charles Karafotas as Prince
• Sta Sbarski as Mother
• Dash Victoria as Cornelius

Release and production context

Alien Spa is listed as a 2026 film with a release date of September 16, 2026. It has a runtime of 1 hour and 14 minutes and is presented in English. Motel Zero is the credited production company. The film’s listed status is Released, and no country of production is provided in the supplied details.

Production companies: Motel Zero

Alien Spa official trailer

Watch the official trailer on YouTube

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With its grieving-siblings premise, extraterrestrial setting and deliberately unusual genre mix, Alien Spa is positioned as a compact horror-comedy with science-fiction and adventure elements. Viewers can expect the spa setting and alien threat to define the film’s identity, while the full shape of the siblings’ ordeal remains part of the viewing experience.

Film data:
TMDB