Plot Synopsis

AN AMERICAN MURDER MYSTERY: THE STAIRCASE is the unabridged story of the suspicious death of Kathleen Peterson and the trial of her husband, Michael, for her murder. Michael appears to have it all -- a doting wife, a loving family and a successful literary career -- but, that all changes on December 9, 2001, when Michael's wife, Kathleen, is found dead in a pool of blood at the bottom of a staircase in their home in Durham, North Carolina. Michael claims it was a tragic accident. Investigators, however, fear something far more sinister is at play and direct their attention to him. Did Michael Peterson murder his wife? The three-night event features all-new and exclusive interviews with key players in the case, most notably Candace Zamperini, Kathleen's sister and Brent Wolgamott, a male escort whom Michael was emailing with at the time of the crime, as well as legal experts, jurors and reporters who covered the case from the very beginning. Plus, the series provides a unique and comprehensive look at the death of Kathleen Peterson, exploring the shocking theories, critical evidence and surprising secrets that thrust this case into the national spotlight.
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On Tuesday, April 10, 2018 at 10pm ET/PT, Investigation Discovery premiered "Reversal of Fortune," the finale of AN AMERICAN MURDER MYSTERY: THE STAIRCASE. The defense unveils what they claim is a long sought-after piece of evidence. The prosecution is caught off guard. Then, bombshell revelations about an expert witness threaten to unravel the entire case and give Michael Peterson a shot at freedom.