Starz has boarded dark British series Sweetpea, starring Yellowjackets and Fallout star Ella Purnell.

The series, which comes from Kirstie Swain, was originally ordered by UK pay broadcaster Sky in 2020, as revealed by Deadline. Starz has acquired the U.S. and Canadian rights to the six-part series and will air it later this year.

The series follows Rhiannon Lewis, played by Purnell, who 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 anew, intoxicating power, but can she keep her killer secret?...