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Demi Moore stars in the new sci-fi horror film "The Substance" as an actress who uses a mysterious serum to look younger.

The movie also features Margaret Qualley and Dennis Quaid.

"The Substance" will be available to stream on Sling with the HBO Max add-on starting Friday, Oct. 10.

Sling TV offers a bundle with HBO Max, with introductory pricing available for new subscribers.

Demi Moore is back in a big way! Her five-time Oscar-nominated film, The Substance, is now available to stream on HBO Max .

The Substance is a sci-fi, horror film where actress Elisabeth Sparkle (Moore) loses her job in an aerobics show as a sign of her career starting to fade. She decides to inject herself with a mysterious serum that is meant to improve her looks, making her look younge

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