Investigators desperately search for a killer after Florida teacher Denise Hallowell is found murdered. Dennis Murphy reports.

Dateline

Horror at the Lake

When a former Arkansas state senator is found fatally stabbed, investigators must determine if her murder is connected to her political career or her personal life. Dennis Murphy reports.

The Hands of a Killer

After a New Jersey mother reports that her five-year-old son vanished from a carnival, detectives embark on a decades-long investigation. Andrea Canning reports.

The Blue Blanket Mystery

After a prominent plastic surgeon is murdered in his Asheville, North Carolina home, investigators uncover a trail of clues pointing to an unlikely killer. Keith Morrison reports.

The Day the Music Died

When a woman dies after what appears to be an accidental fall, evidence comes to light that suggests it could have been homicide. Andrea Canning reports.

The House on Shalimar Way

Pluto

After a beloved teacher is found murdered in her home on New York's Staten Island, investigators uncover cracks in her seemingly idyllic life and unearth her killer. Keith Morrison reports.

Secrets of the Sliding Door

Dubbed the 'Black Swan' case, a former ballerina falls in love with a man 30 years her senior, but when their love story spirals out of control one of them winds up dead. Andrea Canning reports.

Deadly Dance

When Jasmine Pace mysteriously vanishes, her determined family takes matters into their own hands, pursuing every digital clue she left behind. Blayne Alexander reports.

The Pin at Apartment 210

"Dateline" is NBC's signature newsmagazine, bringing viewers storytelling at its best by putting the pieces together to present the full picture of real-life events. NBC News correspondents cover compelling stories and issues of the day.

Secrets of the Sliding Door

Full Episodes

Season 33, 3 episodes