Dateline: Unforgettable - Season 4

First aired: 6/6/2024 10 episodes
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Episodes

1. What Happened in Vegas

Aired: 6/6/2024

A chance encounter on the Pacific Coast Highway with a woman he first spoke to in a jail cell leads Keith Morrison to re-examine the mysterious death of Las Vegas casino magnate Ted Binion.

2. Lonestar Obsession

Aired: 6/13/2024

When Dr. Joe Sonnier is murdered in Lubbock, TX, the investigation reveals simmering jealousies and a love triangle; Andrea Canning recalls a doctor who dedicated his life to helping others.

3. Twisted Faith

Aired: 6/20/2024

A pastor's secrets come to light, triggering a murder investigation; Josh Mankiewicz looks back at a case that shattered a congregation and exposed the cost of their trust.

4. Sex, Lies & Murder

Aired: 6/27/2024

When a woman is found dead in her SUV, the investigation into her murder reveals a tangled web of sex and lies. Dennis Murphy looks back on his unusual interview with the lead suspect.

5. In A Lonely Place

Aired: 7/4/2024

Chris Smith's family receives an email stating that he is leaving California to surf the world; months later, they wonder if he really left. Keith Morrison offers new insights into the case.

6. The Music Box

Aired: 7/11/2024

After 24-year-old Lisa Zeigert is killed in Agawam, MA, in 1992, her family keeps the case in the public eye for decades and it was featured on the show Unsolved Mysteries; Andrea Canning reflects on the harrowing mystery and discusses the inspiration she's drawn from Lisa's loved ones.

7. Detective Story

Aired: 7/18/2024

In Los Angeles, newlywed Sherri Rasmussen is killed in an apparent botched burglary in February 1986; nearly 20 years later, a detective discovers a clue that turns the case on its head; Josh Mankiewicz revisits a story with a twist that surprised him.

8. The Secret Life of the Homecoming Queen

Aired: 7/25/2024

To many, it seemed like a romance between a former football player and homecoming queen; but when it ends in death, the police investigate; Dennis Murphy reflects on a secret relationship that led a churchgoing couple down a dangerous path.

9. Kill Switch

Aired: 8/1/2024

Keith Morrison revisits a story where he says unusual would be putting it mildly; at first it appeared to be a drowning accident during a romantic sunset cruise; but soon Idaho investigators suspected something more sinister.

10. Window of Opportunity

Aired: 8/8/2024

A bombshell more than a decade after the crime reignites the investigation into the death of Sarah Pagel's mother. Andrea Canning looks back at her emotional interview with Sarah, whose mom touched so many lives.