Anna Diop —so haunting in 2022’s Nanny —made another chilling horror film that same year: Posies , a short from writer-director Rachel Stavis. While Posies received positive reviews upon its first release, it’s getting a re-promotion on horror streamer Alter because of a certain name in its credits: pop superstar Chappell Roan, who composed its score before breaking big with her 2023 album The Rise and Fall of a Midwest Princess . Roan’s 2018 song “Bitter” is also in the movie.

Here’s the premise for Posies : “As people begin to ‘devolve’ into monsters, one woman attempts to hide her transformation by placing flowers under her skin.” You can watch the trailer below. “Having Chappell Roan’s creativity and intensity strewn throughout Posies by way of the score that she so eloquently created was a dream come true,” Stavis, who wrote Posies and co-directed with Katherine Fisher (and is also a “non-denominational exorcist,” according to her official bio) said in a press release.

“Our earliest discussions about this project centered around using her greatest instrument—her voice—to create a haunting, emotional, and atmospheric depth to the film. She captured exactly what we envisioned for this and did it virtually on her first try. It was extraordinary.

She has an amazing gift of storytelling through music, and her composition remains one of the most unique and unforgettable elements of the film. We’re beyond grateful that she was able to c.