Kaia Gerber bathes with another woman after unleashing her killer instinct in American Horror Story

Kaia Gerber is making a devilish acting debut on the Ryan Murphy anthology American Horror Stories.

Fans got their first full look at the model’s upcoming role with a new trailer on Thursday, introducing her character Ruby across several sexy and sinister moments.

In the clip Kaia, 19, slips into the bath with girlfriend Scarlett, played by Sierra McCormick, after being captured in full murder mode in another scene.

Devilishly good: Kaia Gerber goes from sinister to sexy and back again in a new trailer for American Horror Stories, slipping into a bath with co-star Sierra McCormick in her acting debut

Killer instincts: The new trailer introduces the character Ruby across several sexy and sinister moments

Gerber looked punk-chic in leather and chains as she stalked down a hallway playing with a butterfly knife before she viciously stabs someone several cuts later.  

In between rapid edits the second generation celebrity, whose mom is Cindy Crawford, and Scarlett share a passionate kiss.  

Next they’re seen in the bath, where Kaia’s character shares some shiver-inducing advice, telling her girlfriend: ‘There are so many wonderful ways to make people suffer.’ 

The trailer also features Paris Jackson in a brief moment of terror. 

Sharp dresser: Gerber looked punk-chic in leather and chains as she stalked down a hallway playing with a butterfly knife

Bloody thirsty: She viciously stabs someone several cuts later 

Romance: In between rapid edits Kaia and Scarlett share a passionate kiss

Soaking: Next they’re seen in the bath in what appears to be the haunted house the show is anchored around

Chills: Kaia’s character shares some shiver-inducing advice, telling her girlfriend: ‘There are so many wonderful ways to make people suffer’

Scream: The trailer also features Paris Jackson in a brief moment of terror

Creator Ryan Murphy shared the teaser on his social media, telling followers: ‘Your summer of horror starts here.’ 

Kaia tagged the TV titan while posting a more mysterious preview the day prior, writng:  ‘@mrrpmurphy let there be screams.’

While American Horror Stories marks Gerber’s first significant acting role, she does have a bit of onscreen experience from her part in the 2015 Lifetime movie Sister Cities.

At the time the star seemed on-the-fence about making acting her main thing, telling E! News: ‘I’m focusing a lot on modeling right now and it’s been pretty busy, but just because this whole experience has been incredible I’m not closing any doors to anything.’

The first two installments American Horror Stories’ seven-episode anthology will debut Thursday, July 15 exclusively on FX on Hulu.

The first two installments American Horror Stories’ seven-episode anthology will debut Thursday, July 15 exclusively on FX on Hulu