The Substance’ is being distributed by MUBI, but does that mean the MUBI streaming service is where you’ll be able to watch it at home first? Demi Moore returns to the silver screen in the new body horror flick “The Substance.

In its first two hours, “The Substance” is a well-made and entertaining movie. Writer-director Coralie Fargeat treats audiences to a heavy dose of biting social commentary on ageism and sexism in Hollywood with a spoonful of sugar-doused body horror that delights and disgusts.

The premise and plot of “The Substance” are simple: celebrated actress and fitness guru Elisabeth Sparkle ( Demi Moore, in a scenery-chewing performance) has a star on the Walk of Fame and a popular exercise show.

It's not long before Demi and her doppelganger are at each other's throats. Complications ensue when Sue is hired by Elisabeth's old boss (Quaid is scarily hilarious as Harvey) to star in a new workout show called "Pump It Up.

The provocative new film “The Substance,” about an aging celebrity (Demi Moore) who takes an illicit drug to be young again, opened on September 20 following its May premiere in competition at the Cannes Film Festival,

The body horror nightmare story is sensual, unhinged, grotesque, and will have you howling with laughter. Demi Moore has never been better.

She and costar Margaret Qualley also devoted time to perfecting sexualized gyrations their celebrity fitness characters would perform in front of leering cameras and a slimeball of a boss, played by Dennis Quaid,