Claustrum (2026): Cast, Story and Release Details

Prepared by Movies Dock Editorial

Claustrum is a 22-minute Brazilian horror short centered on Alice, who discovers she cannot leave her bedroom during the night. To find a way out, she must face her past through a dreamlike world of enigmas. Eduardo de Queiroz wrote and directed the film.

Claustrum is a 2026 Brazilian horror short written and directed by Eduardo de Queiroz. The film follows Alice through a night when an ordinary move takes an unsettling turn: she finds herself unable to leave her own bedroom.

With a runtime of 22 minutes, the film builds its premise around confinement, mystery and a journey into the past. Its story uses a dreamlike setting filled with enigmas as Alice searches for a way to escape.

Claustrum movie details

Story without spoilers

Alice is in the process of moving when she realizes, during the night, that she is trapped inside her bedroom. The room becomes the starting point for a strange and uncertain experience, leaving her with only one apparent route toward freedom: confronting her past.

The film’s premise places Alice at the center of a dreamlike journey shaped by enigmas. Rather than revealing how those mysteries unfold, Claustrum frames its horror around her attempt to understand what she is facing and find a way out.

What to expect

Claustrum is a compact horror story built around a single character, an enclosed bedroom and a supernatural or dreamlike mystery. The short format gives the premise a focused structure, while Alice’s confrontation with her past provides the central dramatic problem.

Viewers can expect an atmosphere shaped by confinement and unanswered questions rather than an expansive cast or multiple locations. The supplied premise points to a psychological and enigmatic approach to horror, with the story’s tension tied closely to Alice’s struggle to escape.

Cast and creative team

Bárbara Cordeiro stars as Alice, the film’s central character. Eduardo de Queiroz serves as both director and writer, making Claustrum a short film led by a single credited performer and a unified writing and directing vision.

• Bárbara Cordeiro as Alice

Release and production context

Claustrum is a Brazilian film in Portuguese. It is listed as a 2026 release with a release date of September 23, 2026, and a runtime of 22 minutes. The film is classified as Horror. Eduardo de Queiroz is credited as both director and writer, and no production company is listed in the supplied details.

Movies Dock view

Claustrum presents a contained horror premise in which a routine move leads Alice into an unsettling confrontation with her own past. Its short runtime, Portuguese-language Brazilian setting and dreamlike mystery make it a focused entry for viewers interested in concise, enigmatic horror stories.

Film data:
TMDB