The Substance 2024 Reviews Rotten Tomatoes. Demi moore plays an aging actress who falls into a mutating nightmare in the superbly disgusting satire the substance. Critics are saying demi moore's upcoming movie the substance is one of the best of 2024 despite its disgusting effects and brutal commentary on aging.

“the perfect breakout genre movie of the year.” Demi moore plays an aging actress who falls into a mutating nightmare in the superbly disgusting satire the substance.