Swarm, co-created and co-executive produced by Janine Nabers and Donald Glover, follows Dre (Dominique Fishback), a fan of the fictional Beyoncé-esque music icon Ni'Jah, whose love for her favorite singer crosses the line from obsessive to murderous.

After setting off on a cross-country journey, Dre meets a slew of characters and commits a slew of crimes, including killing a string of haters in the name of her icon.

When Dre gets pulled over in Tennessee by a racist cop, a young white woman comes to her rescue, leading her back to a compound full of more seemingly friendly women.

Eva, the "female empowerment" group's executive director, hosts training and healing sessions with Dre, but it becomes clear as Dre spends more time that Eva's setup is less a commune and more a cult.

It's reminiscent of several Hollywood-adjacent cults, most clearly the NXIVM cult, which involved actresses like Alison Mack, who is currently serving a three-year prison sentence. Eilish's character was inspired by that cult and its leader Keith Raniere, who was sentenced to 120 years in prison.

Nabers tells THR that the episode explores the idea of the cult of the mind, which was prominent during the time of NXIVM. Eva's manipulations of Ni'Jah's biggest fan turn dark, and Dre begins to question the women she's surrounded by. After their attempts to isolate her through meditative sessions, taking her phone and cleaning the blood from one of her murders out of her car's backseat, Dre decides it's time to move on.

Eilish's Eva and many of her cult members ended up being ran over by Dre as a result.

According to Fishback, who also added that the "Eva persona practically asks for it," the singer was "respectful of the art" and "came in with ideas, wanting to talk about it, and being game to practise," according to Rolling Stone.