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The plot follows Elisabeth Sparkle (Demi Moore), an aging fitness icon who is fired from her television show due to ageism. In a desperate bid to reclaim her youth and relevance, she turns to a mysterious black-market medical procedure known as The Substance. This treatment allows her to give birth to a "younger, more beautiful, more perfect" version of herself, played by Margaret Qualley. However, the procedure comes with strict rules: the two versions must alternate every seven days, and they must remember that they are one. As the boundaries between the two identities blur, the film descends into a grotesque and thrilling exploration of the toxic beauty standards imposed on women.

Features a neon-drenched, surrealist aesthetic with unsettling sound design often compared to ASMR. Further Exploration