Penumbra 4 does not exist as a released or officially announced film in current public records. The search results indicate confusion with other titles, most notably "Penumbra" (2011), a Spanish thriller directed by Adrián García Bogliano, and "After Death" (1989), which is the fourth installment of the Italian "Zombi" series often referred to as "Zombie 4" or "After Death." There is no credible evidence of a standalone movie titled "Penumbra 4" being produced, announced, or distributed by major studios or independent filmmakers as of late 2025 and early 2026.
Some user-generated lists or mislabeled entries may refer to sequel projects within specific horror franchises, but none match this exact title with verified production details. For instance, the 2011 film "Penumbra" remains a standalone work without confirmed sequels. Similarly, while action films like "Shelter" (2026) and "Killer #4" (2025) have been recently discussed or released, they are distinct entities unrelated to a "Penumbra" franchise.
Since "Penumbra 4" has not been released or announced, it is unavailable for streaming, rental, or purchase on any major platform.