Posthumous (2026): Cast, Story and Release Details

Prepared by Movies Dock Editorial

Posthumous follows Zoe as a return to her childhood home leads her to a mysterious videotape and unsettling revelations about her birth and her mother’s death. Directed by Josh Tanner, the Australian horror drama stars Sophie Lowe alongside David Roberts, Doris Younane and Remy Hii.

Posthumous is a 2026 Australian horror drama directed by Josh Tanner. The story centers on Zoe, whose return to her childhood home brings an unsettling discovery with deeply personal consequences.

A mysterious videotape begins to challenge Zoe’s understanding of her birth and her mother’s death, setting the film’s central mystery against an atmosphere of psychological and supernatural horror.

Posthumous movie details

Story without spoilers

After coming back to the house where she grew up, Zoe finds a videotape that appears to hold important clues about her family history. As its contents disturb what she believed about her birth and the death of her mother, the discovery draws her toward an increasingly terrifying mystery.

The film combines a family-centered investigation with horror elements, keeping Zoe’s personal past at the center of the story without revealing how the mystery develops or where it leads.

What to expect

Posthumous is framed as a horror drama built around family secrets, a troubling recording and the return to a significant childhood location. Its premise suggests a story that balances emotional revelations with an awakening supernatural or otherwise unimaginable threat.

The 1-hour-50-minute runtime gives the narrative room to develop its central mystery, while the cast includes performers playing both present-day and younger versions of key characters. Specific stylistic or tonal details are not provided in the available information.

Cast and creative team

Sophie Lowe leads the cast as Zoe. David Roberts plays Neil, with Doris Younane as Brenda and Remy Hii as Alex. Christopher James Baker appears as Rohan, while Kira-Che Heelan plays Joanne. George Pullar portrays Young Neil, and Mia Morrissey portrays Young Brenda.

Josh Tanner directs the film and co-wrote it with Jade van der Lei.

• Sophie Lowe as Zoe
• David Roberts as Neil
• Doris Younane as Brenda
• Remy Hii as Alex
• Christopher James Baker as Rohan
• Kira-Che Heelan as Joanne
• George Pullar as Young Neil
• Mia Morrissey as Young Brenda

Release and production context

Posthumous is an Australian production with a listed release date of September 19, 2026. It is classified as a horror drama and has a runtime of 1 hour and 50 minutes. The production companies are Imposter Syndrome, Screen Australia, Mind the Gap Film Finance and Screen Queensland.

Production companies: Imposter Syndrome, Screen Australia, Mind the Gap Film Finance, Screen Queensland

Movies Dock view

With its focus on a mysterious videotape and unresolved questions about Zoe’s family, Posthumous places its horror premise inside a personal story about memory, identity and loss. The available details present it as a contained Australian genre drama led by Sophie Lowe and written and directed by Josh Tanner.

Film data:
TMDB · IMDb