‘The Fatal Flaw’ True Crime Series Examines Clues Killers Left Behind

ABC’s launching a special edition of 20/20 that will delve into tiny clues left behind by murderers. The Fatal Flaw: A Special Edition of 20/20 is set to premiere on July 7, 2022 with an episode titled “The Eyes Have It,” with the four-episode series dropping new episodes on Thursdays at 10pm ET/PT throughout July.

Remy Weber (The Genetic Detective, Mysteries at the Museum) directs and executive produces. Colleen Halpin also executive produces, and David Sloan serves as a senior executive producer.

The Fatal Flaw Poster

ABC released the following description of The Fatal Flaw:

A new ABC News Studios original, The Fatal Flaw: A Special Edition of 20/20, uses miniature dollhouses of crime scenes to take viewers through chilling homicides and the tiny clues at the crime scenes that helped investigators identify the killers.

In each installment of the four-part series, firsthand accounts from authorities and journalists illuminate the disturbing events as they describe the twists and turns of the investigation and the breakthrough moments that led investigators and police to the killer’s doorstep, featuring commentary from ABC News legal analyst and 20/20 correspondent Ryan Smith, ABC News contributor Elizabeth Vargas, ABC News legal contributor and former prosecutor Matt Murphy.

The one-hour episodes reveal the mistakes that stopped each killer from getting away. The crimes committed range from a real-life “cereal killer,” who poisons his victim via breakfast cereal to the story of a “black widow” who frames her own daughter for the deaths of her two husbands.