Louis Leterrier, Omar Sy, and Thomas Benski’s Carrousel Studios, Benedict Cumberbatch’s SunnyMarch, and Bob Cooper’s Landscape have partnered to produce The Annecy Murders, a six-part psychological thriller inspired by the infamous Chevaline killings, “a cold case that continues to captivate international attention more than a decade after the crime.”
On 5 September, 2012, a brutal attack on a quiet, scenic road near Lake Annecy tragically left four dead, including a British-Iraqi engineer, his wife, her mother, and a French cyclist connected to high-profile industries. Two young girls miraculously survived, unnoticed by first responders for hours. This shocking event sparked a vast investigation spanning multiple countries – including France, the UK, Spain, Israel, Switzerland, and Iraq involving hundreds of investigators and nearly a thousand witnesses. Theories ranged from familial disputes and lone psychopaths to international espionage and money laundering involving Mossad and Saddam Hussein. The unresolved mystery returned to the spotlight last summer when French authorities reopened the investigation, further fueling public and media speculation.
Carrousel, the production and financing company founded by Louis Leterrier, Omar Sy, and Thomas Benski, joins Benedict Cumberbatch’s SunnyMarch and Bob Cooper’s Landscape in bringing the international drama to the screen. The limited series will film across France and the UK, reflecting the cross-border complexities at the heart of the investigation.
Executive producers are Adam Ackland, Leah Clarke and Benedict Cumberbatch for SunnyMarch, Thomas Benski, Cecile Gaget, Louis Leterrier and Omar Sy for Carrousel and Bob Cooper for Landscape.
Bob Cooper from Landscape commented: “We were pulled in right away. It’s rare for a true story to unfold with so many twists and cliffhangers. The case is haunting, the mystery compelling, and the international threads gripping. At its core, The Annecy Murders is a story of obsession.”
Adam Ackland from SunnyMarch added: “As the pursuit of justice continues, we’re very proud to be partnering with Carrousel and Landscape to bring this intricate and deeply affecting cross-border story to light, highlighting the nuanced interplay between the British and French investigative efforts.”
Cécile Gaget of Carrousel Studios said: “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.”
Plot specifics and casting details remain confidential, “as the creative team carefully navigates ongoing negotiations and sensitive aspects of the story.”
The Annecy Murders is set to enter production in 2026.
Jon Creamer
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