Ella Purnell Is Tired of Being Nice in First Killer Trailer for Starz’s Sweetpea

Aren’t you tired of being nice? Don’t you just want to go apeshit?

Those very questions seem to be ringing through the mind of Ella Purnell’s Rhiannon, a lonely, mousy young woman hell-bent on getting revenge on all the people that have stepped on her throughout her life. In Starz’s killer thriller Sweetpea, she aims to take her power back.

According to a press release, “the six-episode series stars Purnell as Rhiannon Lewis, a quiet wallflower who develops a vengeful and intoxicatingly liberating taste for murder. Rhiannon doesn’t make much of an impression—people walk past her in the street without a second glance. She’s continually overlooked for a promotion  at work, the guy she likes won’t commit, and her dad is really, really sick. Then, everything in her life turns upside down. Rhiannon is pushed over the edge and loses control. Suddenly, the wallflower is gone, and in its place is a young woman capable of anything… Rhiannon’s life transforms as she steps into a new, intoxicating power, but can she keep her killer secret?”

The trailer showcases its deliciously dark premise alongside its comedic sensibilities, while Purnell puts her signature wide-eyed stare to great use. Rhiannon opens the trailer with a monologue detailing a list she keeps; on it are all the people that have made her feel invisible throughout her life—all the people she would like to kill. And after watching her be ignored, turned into a human coat hanger, and relentlessly laughed at, we’re not sure we can blame her for finally snapping. As her life spirals, Sweetpea proves that it is, in fact, always the quiet ones.

Check out the trailer below; Sweetpea premieres Thursday, October 10th on Starz.

For all the latest TV news, reviews, lists, and features, follow @Paste_TV.