STARZ released a sneak peek at Sweetpea, where Ella Purnell plays a wallflower who blossoms when she starts killing people she hates.

Ella Purnell has turned to violent methods to make sure she’s not being overlooked anymore in the new Sky and Starz show Sweetpea. The six-episode British revenge thriller follows Rhiannon Lewis (Purnell),

Ella Purnell plays a wallflower-turned-murderer in the official trailer for Sky and Starz’s thriller series “Sweetpea.” The “Yellowjackets” and “Fallout” breakout stars as Rhiannon Lewis, a young woman who doesn’t particularly make an impression,