The first season of Sweetpea was one of those shows that snuck up on audiences. It arrived without much fanfare, adapted from CJ Skuse’s 2017 novel, and quietly built a reputation as one of the most unsettling character studies on television. Ella Purnell played Rhiannon Lewis, a woman so thoroughly ignored by the world that she became invisible—until she started killing people. The show was dark, funny, and genuinely disturbing in ways that caught viewers off guard. Now Rhiannon is coming back, and the first teaser for Season 2 promises more blood, more complications, and a question the character has been avoiding: what if she really has become a monster?
Sky has released the first look at the new season, which will arrive in the United Kingdom this November. Spanish audiences will get it on SkyShowTime, though an exact date hasn’t been announced. The teaser is brief but effective—Purnell’s Rhiannon moving through her new life with the same unsettling calm that made the first season so compelling, while the threat of exposure looms closer than ever.
Sweetpea Season 2 Teaser: What Season 2 Is About
The second season picks up with Rhiannon trying to balance the ordinary demands of her life with the increasingly complicated business of being a serial killer. She’s got a job promotion to navigate, a new relationship to maintain, and a list of victims that keeps growing. The tension between her mundane existence and her violent secret was always the engine of the show, and Season 2 seems poised to push that tension to its breaking point.
The new complication is a copycat killer—someone who’s imitating her methods and threatening to expose her secret. It’s a clever narrative device, forcing Rhiannon to confront the consequences of her actions in a way she’s been avoiding. She’s spent the first season convincing herself that her murders were justified, that the people she killed deserved it, that she’s different from the monsters she hunts. A copycat holds up a mirror to that self-deception. If someone else can do what she does, what makes her special? What makes her any different from them?
The season will also force Rhiannon to reckon with something her ex-boyfriend AJ said before he died. He told her she was becoming a monster. She dismissed it at the time. Now, with a copycat on the loose and her body count rising, she has to ask whether he was right.
The Cast
Ella Purnell returns as Rhiannon, and the role continues to showcase her range. She’s spent the past few years building a career in genre television—Yellowjackets, Fallout, Arcane—and Sweetpea gives her something different from all of them. Rhiannon is a character who exists in the gap between victim and villain, someone whose actions are horrifying but whose pain is real. Purnell plays that ambiguity with precision, never letting the audience settle on an easy judgment.
The supporting cast includes returning players Jon Pointing, Jeremy Swift, Leah Harvey, Ingrid Oliver, Nitin Ganatra, and Alexandra Dowling. New additions include Rish Shah, Tamsin Greig, Taj Atwal, and Jenny Walser. It’s a mix of familiar faces and fresh energy, suggesting a season that will expand the world of the show while keeping its focus on Rhiannon’s internal collapse.
The Show’s Appeal
Sweetpea works because it refuses to make its protagonist sympathetic in the conventional sense. Rhiannon isn’t a righteous vigilante. She’s not a wronged woman taking revenge on a cruel world, though the show nods at those tropes. She’s someone whose invisibility has curdled into violence, whose pain has twisted into cruelty. The show doesn’t ask you to root for her. It asks you to understand her—which is much harder and much more interesting.
The first season built its tension by oscillating between Rhiannon’s ordinary life and her secret one. The horror came from the disconnect: she could murder someone and then show up to work the next day, perfectly composed. The second season seems to be collapsing that distance. The copycat threatens to bring the secret into the open, and Rhiannon’s carefully constructed walls are starting to crack.
The show is also, in its own grim way, a comedy. The situations Rhiannon finds herself in are often absurd, and the show doesn’t shy away from the dark humor inherent in a woman trying to hide a murder habit from her coworkers. Balancing that humor with genuine psychological horror is difficult, but Sweetpea managed it in Season 1. The teaser suggests Season 2 will continue walking that line.
What the Teaser Shows
The teaser is brief, but it sets the tone. Rhiannon looks different—more polished, more confident, as if the new job and new relationship have given her a sense of control she didn’t have before. But the confidence is fragile. The voiceover hints at the pressure building beneath the surface. Someone knows what she’s done. Someone is watching.
The visual language remains the same—clean, bright, almost clinical. That contrast between the show’s aesthetic and its subject matter has always been part of what makes it unsettling. Rhiannon’s world looks ordinary because she’s worked so hard to make it look that way. The horror is what she’s hiding underneath.
What Comes Next
No exact release date has been announced for Spain, but the November UK premiere means international audiences shouldn’t have to wait too long. The show’s creators, led by Kirstie Swain, have clearly thought carefully about where Rhiannon’s story goes next. The copycat killer is a smart narrative choice, introducing a new threat while forcing the protagonist to confront the central question of the series: is she a victim of circumstance, or is she just a monster with good excuses?
That question has always been at the heart of Sweetpea. The show has spent a season letting Rhiannon tell herself a certain story about who she is. Season 2 seems designed to dismantle that story, piece by piece. The copycat is just the beginning. The real threat is the truth Rhiannon has been running from.
Ella Purnell is coming back. Rhiannon Lewis is coming back. And this time, she might not be able to hide from herself any longer. The mirror is being held up. The question is whether she can stand what she sees.