COMING UP - 48 HOURS MYSTERY: "MURDER AT THE MANOR" SATURDAY, NOV. 26 (10:00 PM, ET/PT)

WHAT: Louisiana-born Harold "H" Landry made a fortune in the oil industry before moving to the UK and marrying a British beauty half his age. But what could have happened to this Cajun millionaire turned English gentleman to lead him to murder?

WHO: Richard Schlesinger reports the rags-to-riches fairytale that would have a gruesome ending when H's wife Lucy Landry was found dead, violently stabbed more than 20 times. 48 HOURS MYSTERY unwinds the complicated past of a man known for his big bucks - and an even bigger personality - including an exclusive interview with H, and James McAllister, Lucy's son.

WHY YOU SHOULD WATCH: A proud Cajun who became a multi-millionaire, H met Lucy, a British beauty online and left behind his life in Louisiana to pursue an international romance with her. With Lucy and her son from a previous relationship, James, they moved into a proper British manor. But the seemingly-perfect world of H and Lucy was abruptly shattered when Lucy was murdered at their home on February 1, 2010. Schlesinger investigates the marriage that was far from perfect, and a violent incident in H's past. Who really was H, and what may have pushed him to take the life of his own wife? We hear not only from H himself, but Lucy's son James - only on 48 HOURS MYSTERY.

WHEN: Saturday, November 26 (10:00 P.M. ET/PT)

On Saturday, Nov. 26 (10:00 - 11:00 PM, ET), Schlesinger will debate the case on Facebook, while the producers of 48 HOURS MYSTERY will lead the conversation on Twitter.