The Substance” (2024), directed by Coralie Fargeat, is a psychological thriller infused with elements of body horror, exploring themes of identity, beauty, and the relentless societal pressures around ageing, especially for women. Demi Moore stars as Elisabeth Sparkle, a former A-list celebrity whose career has stalled, leaving her hosting a workout show until her boss, Harvey (Dennis Quaid), abruptly fires her. The character’s desperation to reclaim her former glory leads her to a mysterious product, “The Substance,” which allows her to become a younger version of herself, named Sue (played by Margaret Qualley).

The film thrives on its tension, driven by the high-stakes premise that Elisabeth can only inhabit Sue’s body for seven days at a time, alternating between this youthful façade and her true self. This setup provides a constant undercurrent of suspense, as both versions of Elisabeth grapple with the consequences of their dual existence. Fargeat’s script and direction focus heavily on themes of self-worth, societal expectations, and the commodification of beauty, drawing parallels to her earlier work, Revenge. The film doesn’t shy away from gruesome and visually arresting scenes, making use of vivid, unsettling imagery.

Demi Moore’s performance has been highlighted as one of her best, bringing depth to the portrayal of a woman confronting the harsh realities of ageing in an industry obsessed with youth. Her scenes opposite Margaret Qualley, who embodies the younger, more vibrant Sue, create a compelling dynamic that explores the internal and external struggles of identity and worth. Dennis Quaid is notably sinister as Harvey, embodying a ruthless industry executive, which adds a biting satirical edge to the narrative.

The film’s visual style is striking, with neon-lit sequences and creative cinematography that complement its unsettling tone. The body horror elements, while intense, serve a thematic purpose, reflecting the physical and emotional toll of Elisabeth’s transformation. This stylistic choice enhances the story’s exploration of vanity and the lengths people will go to reclaim lost youth.

Overall, The Substance is a bold, provocative thriller. It balances character-driven drama with sharp social commentary, making it a captivating watch for those who appreciate a blend of psychological depth and visceral horror. While it may not appeal to everyone, especially those averse to graphic content, its mix of tension, standout performances, and thematic ambition make it a notable entry in contemporary thrillers.