A fading celebrity fitness instructor injects a black-market substance that splits her into two selves — her ageing original body and a younger, perfect duplicate — each obliged to swap consciousness every seven days. Coralie Fargeat's visceral, body-horror satire turns the entertainment industry's contempt for ageing women into something magnificently grotesque, pushing its premise to an operatically bloody extreme as the two selves begin to compete for more than their allotted time.
