This film builds on Coralie Fargeat's previous work, "Reality+" (2014), but with a much sharper critique of superficiality. “Elisabeth” (Demi Moore) has maintained an impressive fitness level for years until her boss, “Harvey” (Dennis Quaid), decides she’s past her prime and needs to be replaced by a younger model for the television programs featuring attractive, healthy people demonstrating exercises. While dealing with this threat to her career, she's involved in a car accident that leads to an encounter with a handsome young nurse (Robin Grear) and then a strange offer to try a substance promising rejuvenation. Following the narrative structure of "Jekyll and Hyde," the injection creates a split personality: one is her current self, the other a flawless, younger version. They alternate weeks of consciousness, but the more energetic persona, “Sue” (Margaret Qualley), disregards these boundaries, leading to disturbing consequences – what’s taken can't be returned. With Harvey eager to exploit his new ratings success, Elisabeth finds herself increasingly sidelined—but what options does she have? There’s no turning back! I believe this showcases Moore’s talent; her portrayal of escalating anger, annoyance, and disappointment is skillfully done, as is Qualley’s depiction of the alter ego's selfishness. Quaid delivers a memorable performance as the truly repulsive embodiment of corporate avarice, focused solely on profit and disregarding individuals. The ending feels like something David Lynch or David Cronenberg might have created, allowing the disturbing nature of this story about vanity to reveal how fragile life is when those lives lack depth and meaning. It’s a harsh condemnation of the short-sighted and unethical "beauty" industry that targets everyone involved, and it's an enjoyably unsettling film well worth seeing.

Source on TMDB