Body-image anxiety becomes a literal monster
Synopsis
Thinestra is a darkly comedic body horror film that turns internal struggles into external terrors, that follows Penny, a young woman tormented by body dysmorphia and relentless societal pressures around perfection.
Hoping for a quick fix, Penny impulsively takes a mysterious, Ozempic-esque weight-loss drug, but the fat she sheds manifests as a ravenous doppelgänger, Penelope, who begins to wreak havoc in Penny’s life.
Penny must confront the chaos her doppelgänger causes while grappling with the harsh internal voice that tells her she’s “not enough.”
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About Thinestra
Thinestra has drawn comparisons to The Substance, offering a fresh take on grotesque, body-focused horror while blending dark comedy and psychological insight.
The film is the feature directorial debut of Nathan Hertz and is written by Avra Fox-Lerner, while producers Alexandra Lubenova and Kelly Parker helped bring the concept to life, emphasizing a story that blends horror with social commentary on appearance, desire, and self-perception.
The film has already earned accolades on the festival circuit, including screenings at Sitges, Raindance, Screamfest, and the Boston SciFi Film Festival, winning the Vortex Sci-Fi, Fantasy & Horror Award Grand Prize.
Director and Cast
Thinestra is directed by Nathan Hertz and the cast includes Michelle Macedo, Melissa Macedo, Mary Beth Barone, Annie Ilonzeh, Gavin Stenhouse, Shannon Dang, Brian Huskey and Norma Maldonado.
Identical twins Michelle and Melissa Macedo play the central roles, capturing both sides of Penny’s horrifying transformation.
Trailer
Images
Release Date
Thinestra is scheduled for digital release on April 14, 2026 via Breaking Glass Pictures, following a successful festival run and critical buzz on the horror circuit.