TVTV NewsITVThe upcoming drama will tell the harrowing true story of one young woman and features the likes of Call the Midwife and Downton Abbey stars.15:33, 08 Aug 2026Updated 15:35, 08 Aug 2026Filming for ITV's latest drama has commenced.‌The upcoming series will tell the tale of Mavis Eccleston, a woman who survived a suicide pact with her husband of 60 years before being accused of his murder.‌Downton Abbey actress Dame Penelope Wilton will play Mavis in the four-part series, alongside Sir Jonathan Pryce as Dennis Eccleston.‌The duo are also joined by Blue Lights star Sian Brooke and Call the Midwife's Chris Reilly as the couple's children Joy and Kevin.While Jill Halfpenny and Darrell D'Silva take on the roles of Tracey and Kenton, the partners of Kevin and Joy.Content cannot be displayed without consent‌Now, ITV have confirmed the series has officially finished filming, sharing a photo of four stars on-set with a clapperboard.The caption read: "That's a wrap on filming for Mavis Eccleston."Based on a heartbreaking true story, the drama follows a devoted couple whose plan to end their lives together ended in tragedy, with one of them subsequently facing a murder trial. Coming soon to ITV and ITVX."‌An official description of the upcoming drama shared that the couple had made the heartbreaking decision when Dennis was diagnosed with terminal cancer."Much to the anguish and upset of their adult children, Kevin and Joy, Mavis and Dennis decided to end their lives together when 81-year-old. Dennis received a terminal cancer diagnosis and declined treatment to avoid prolonging his suffering," the description reads.‌It continues: "He'd had cancer twice before and knew the gruelling toll the invasive treatment would take on him and his family life."Truly heartbreaking events unfold as the family desperately tries to dissuade Dennis and Mavis from taking a lethal cocktail of medication, but they remain steadfast in their belief that they should leave the world together."Article continues belowAcclaimed screenwriter Chris Lang, who created ITV's Unforgotten, has written the series.Each of the four episodes will be directed by BAFTA-winning Bruce Goodison, with Kate Cook producing.Mavis Eccleston will air on ITV, STV and be available for streaming on ITVX and STV Player soon.Choose Daily Mirror as a 'Preferred Source' on Google News for quick access to the news you value.‌ITVDownton Abbey