Four college students are murdered in Idaho. A group of amateur detectives obsessed with true crime try to solve the case by examining evidence and pursuing leads.

With insight from investigative journalists and criminal experts, explores the horrific crime that claimed the lives of four college students in Moscow, Idaho.

What happened when terror gripped the rural town of Moscow, Idaho, when authorities found four University of Idaho students ― Ethan Chapin (20), Madison Mogen (21), Xana Kernodle (20) and Kaylee Goncalves (21) ― stabbed to death in an off-campus house in November.

When four University of Idaho students were murdered by an unknown attacker in November 2022, Zara McDermott first read about it on social media. The small American college town of Moscow is home to just 25,000 people, most of them students, and hasn’t seen a homicide in seven years. For six weeks, the police said they had no suspects, no motive, no weapon, and had found no signs of forced entry into the house. Zara heads to Moscow to find out how much of what she saw online was even real, and how much was pure speculation. She meets the true crime sleuths making thousands of hours of social media content on this case to find out why they felt the need to post their own interpretation, and why people were so keen to listen to them rather than the network news or the police. Zara also speaks to those who were affected by the rumours spread online and sees the impact this social media storm has had, leading her to question her own role in the tragedy.

Details surrounding the murders of four University of Idaho students and the investigators' cross-country hunt to capture the alleged killer.