The Fatal Flaw: A Special Edition of 20/20: Story, Cast and Series Facts

Story and premise

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.

Series details

• Title: The Fatal Flaw: A Special Edition of 20/20
• Format: News
• Language: English
• Genres: Crime
• Premiere date: 2022-07-07
• Final broadcast date listed: 2022-08-05
• Status in TVmaze: Ended
• Network listed by TVmaze: ABC
• Network country: United States
• Typical episode runtime: 60 minutes
• TVMaze ID: 62925
• IMDb ID: tt21221498
• TVDB ID: 422674

Seasons in the TVmaze catalogue

• Season 1: premiered 2022-07-07; final listed air date 2022-08-05; episode order: 4.

Source and licence

Adapted from The Fatal Flaw: A Special Edition of 20/20 on TVmaze. The synopsis is reproduced as plain text; catalogue facts, cast and season records are selected and reformatted. This adapted text is available under CC BY-SA 4.0, following the TVmaze API licence. Network and web-channel credits identify the service listed in this source; they do not establish current streaming availability.