Clean Sweep: release date, cast, plot, trailer, episode guide and all you need to know

Clean Sweep is an Irish drama based on a real life case and starring Charlene McKenna and Barry Ward..
Clean Sweep is an Irish drama based on a real life case and starring Charlene McKenna and Barry Ward.. (Image credit: BBC / ZDF Studios / Barry McCall))

Clean Sweep is based on real events as it stars Charlene McKenna as a mother with a dark past. She plays Irish suburban housewife and mother-of-three Shelly Mohan, who seems to have it all. But when her past catches up with her and threatens the life she has built up, she turns to murder. In an intriguing twist, Shelly's husband Jason (Barry Ward) is the Irish Garda detective who, oblivious to his wife’s part in the crime, is assigned to the case.

 "This was one of those parts that I got to explore all kinds of emotions - there’s Shelly’s past life, her current construction of a life and then there’s the balance or hiding in plain sight and being a killer,” says Charlene. “It was just a gift to play." 

Here’s everything you need to know about Clean Sweep

Clean Sweep release date

Clean Sweep is a six-part that launches in the UK with episodes running as weekly double bills on BBC4 from Saturday July 29 at 9pm and 9.50pm, while the whole series is box setted on BBC iPlayer from that date. The drama was previously been shown on RTE and RTEplayer in Ireland from May 14 2023. It's also available in the US on Sundance Now and AMC+ from June 22 2023. As soon as a UK release date is confirmed we’ll update you here. 

Is there a trailer for Clean Sweep? 

Yes, as Clean Sweep has already been shown in Ireland there's a trailer to view. shows a figure from Shelly’s past re-emerge and we witness her taking drastic action to protect her new life. We also see the net start to close in around her as her husband Jason investigates the case. Take a look below...

Clean Sweep plot

Clean Sweep is inspired by true events and follows suburban housewife Shelly, who has a happy marriage, three children and a beautiful home. But then her old partner-in-crime Charlie Lynch resurfaces. When Charlie threatens to expose her ‘past sins’, Shelly shoots him dead. But her problems are only just beginning when, as a murder hunt is launched, Shelly’s husband, Garda detective Jason, is tasked with tracking down the killer alongside his police colleague Fiona. As the noose tightens, can Shelly cope with the pressure..? 

Clean Sweep investigation.

Clean Sweep investigation for Garda detective Jason (on right) and Fiona Uba (Jeanne Nicole Ní Áinle). (Image credit: Christine Ramage/Sundance Now)

Clean Sweep cast — Charlene McKenna on playing Shelly Mohan

Charlene McKenna, who stars as killer housewife Shelly, says of Clean Sweep: "It's got depth, tension, love, family, crime and it really runs the emotional gamut. Creator and showrunner Gary Tieche has this fascination with soccer mums who commit crimes - his words, not mine - and that's what started him down the rabbit hole of creating the character of Shelly. I couldn’t believe I was offered the part - and being executive producer on the show as well makes me feel like I'm wearing my mummy's high heels!"

* Previously, Charlene played Leah Liebermann in Vienna Blood and Niamh McGovern in Bloodlands. Charlene has also starred in Peaky Blinders, Ripper Street, Holding, Raw and Death and Nightingales

Can Shelly get away with murder?

Can Shelly get away with murder? (Image credit: BBC)

Barry Ward as Jason Mohan

Barry Ward plays Shelly’s husband, detective Jason who works on the murder case which his swife Shelly is responsible for. 

Barry has previously starred in The End of the F***ing World, Save Me, Des and Bad Sisters. He’s also appeared in White Lines, The Capture and Britannia

Jason Mohan (Barry Ward) during his investigations.

Jason Mohan (Barry Ward) during his investigations. (Image credit: BBC)

Who else is starring in Clean Sweep? 

Other Clean Sweep cast includes Cathy Belton (The Catch) who plays Scotland Yard investigator DCI Gwen Crichett. Rhys Mannion, Katelyn Rose Downey and Aidan McCann play the Mohan children. Aoibheann McCann and Robert Mitchell also star. 

Adam Fergus plays Charlie Lynch. Shelly gets a shock when mysterious Charlie turns up claiming to want to ‘save her’ from her past sins. How exactly were they ‘partners in crime’?

Jeanne Nicole Ní Áinle is playing Fiona Uba. Jason and his detective colleague Fiona get stuck into tracking down Charlie’s killer. But amid suspicion they’re more than just friends, can they keep things professional?

Trevor Kaneswaran plays Matt Wilson. Writer Matt sits alongside Shelly on the PTA and the pair soon bond - but does he have more on his mind than bake sales and fundraisers?

Clean Sweep episode guide

Here's a brief episode guide for Clean Sweep with a few spoilers, so do move on if you don't wish to read them.

Episode 1: Done is Done
Shelly Mohan, a housewife and mother of three, makes an irreversible decision, and commits an unspeakable act, when a man from her distant past surfaces – she commits murder.

Episode 2: Post Mortem
Shelly’s husband Jason, a Garda Detective, is delighted to be assigned to case, with no sense where the trail may lead.  While he and his co-worker, Fiona, focus on a sex worker, Shelly realizes she may have left evidence in the dead man’s hotel room.

Episode 3: Find Her 
We learn of Shelly’s dark history, as a teenager who was part of a drug ring in London 20 years earlier with Charlie Lynch, the man she shot. When Lynch’s true identity is uncovered, a UK officer, DSI Crichett, reopens an old murder case Shelly and Charlie were linked to.

Episode 4: Deirdre 
The investigation continues to build steam in both countries, while Shelly continues to juggle her parenting and family responsibilities – problems with her husband and children that would stress anyone.  As Jason’s partner Fiona grows suspicious of Shelly, we learn of the measures Shelly took to change her identity.

Episode 5: Let it Go
Shelly tries to change her fingerprints, while the investigation in London is developing new leads despite political pressure to close the case.  New witnesses give descriptions of the suspect that may point to Shelly.

Episode 6: Silent Mouth
The pressure builds on all fronts as Jason tries to close the case.  Will Shelly be able survive as the pressure builds?  The one option closed to her is to flee—she would never leave her children.

 

Behind the scenes and more on Clean Sweep

Clean Sweep was acquired for the BBC from ZDF Studios. It was produced by ShinAwil and Incendo.

Sue Deeks, Head of BBC Programme Acquisition, says: “Clean Sweep is a gripping psychological thriller – BBC viewers will be hooked by Shelly, and how she copes with all of the repercussions of her secret life.”

Nicholas Cannon
TV Content Director on TV Times, What's On TV and TV & Satellite Week

I'm a huge fan of television so I really have found the perfect job, as I've been writing about TV shows, films and interviewing major television, film and sports stars for over 25 years. I'm currently TV Content Director on What's On TV, TV Times, TV and Satellite Week magazines plus Whattowatch.com. I previously worked on Woman and Woman's Own in the 1990s. Outside of work I swim every morning, support Charlton Athletic football club and get nostalgic about TV shows Cagney & Lacey, I Claudius, Dallas and Tenko. I'm totally on top of everything good coming up too.