Experience a life of perfection with the Substance, a revolutionary product that generates a duplicate of yourself, younger and more beautiful. Share time with your new, improved self, alternating between one week of your life and one week of theirs. But beware, there's only one rule: maintain the perfect balance.

The Substance
A famous actress, struggling with the consequences of aging, discovers a mysterious elixir that not only reverses the signs of aging but also boosts her physical and mental abilities, leading her on a path of self-discovery and transformation.