Benedict Cumberbatch to Executive Produce ‘The Annecy Murders,’ Based on Real-Life Cold Case
Benedict Cumberbatch will executive produce a new six-part limited series, based on true events, called The Annecy Murders.
Inspired by the infamous Chevaline killings, the show will follow the cold case that captivated the world when on Sep. 5, 2012, a British-Iraqi engineer, his wife, her mother, and a French cyclist were shot dead on a scenic road near Lake Annecy in . Two young girls, aged 4 and 7, survived, unnoticed by first responders for hours.
The event sparked a vast investigation spanning multiple countries, including France, the U.K., Spain, Israel, Switzerland, and Iraq, involving hundreds of investigators and nearly a thousand witnesses. But the unresolved mystery returned to the spotlight last summer when French authorities reopened the investigation, further fueling public and media speculation.
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Carrousel, the production and financing company founded by Louis Leterrier, Omar Sy, and Thomas Benski, joins Cumberbatch’s SunnyMarch and Bob Cooper’s Landscape in bringing the drama to the screen.
“When we first came across this story, we immediately saw its incredible potential,” said Cooper. “It’s a haunting case that has everything — a compelling mystery, intrigue, and profound human drama. It demanded to be told.”
EP Cécile Gaget of Carrousel Studios added: “This was a no-brainer for Carrousel. With the recent reopening of the case, the international resonance, and the unique cultural perspectives on the investigation, we are committed to delivering a powerful and authentic narrative. Carrousel’s role in financing and physically producing the series in France underscores our dedication to innovative storytelling.”
The limited series will film across France and the U.K. in early 2026. Plot specifics and casting details remain under wraps.
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