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A pregnant woman vanishes before her own baby shower and her worried family raises the alarm as detectives unravel a chilling mystery; for Josh Mankiewicz, it was a heartbreaking case that stayed with him long after the cameras stopped rolling.

Dateline: Unforgettable

The Day Akia Disappeared

When a pharmacist is found shot dead, investigators go on a 15-year hunt for his killer; for Andrea Canning, this story has unique locations, fascinating potential suspects and riveting plot twists, but says the victim makes this mystery special.

The Trouble on Dill Creek Farm

Two murders in Toronto ignite an investigation that spans four decades, but breakthroughs in investigative genetic genealogy help crack the case; Josh Mankiewicz revisits the mystery that took him to the coldest and most remote place he's ever been.

Evil Walked Through the Door

A mother is found dead in a house fire, but an autopsy reveals a brutal murder; the case goes cold until an unexpected confession sheds new light; Blayne Alexander looks back at a family shattered by loss, but determined to uncover the truth.

Justice for Joy

After a woman is murdered, a secret is exposed but a mystery still looms; Andrea Canning re-examines the story she first covered years ago; new developments lead to an unexpected conclusion and an interview you have to see to believe.

The Perfect Life

After a mother is found murdered in her Virginia home, her son embarks on a 20-year quest for justice; for Josh Mankiewicz, this cold case was one of the strangest he's ever covered. He looks back at the reasons why.

Behind the Closet Door

An apparent home invasion in Minnesota leaves Heidi Firkus dead and her husband hospitalized; for Blayne Alexander, getting to know Heidi through loved ones was a privilege; for investigators, learning about Heidi helps solve the case.

65 Seconds

When Leslie Neulander dies after what seems like an accidental fall in the shower, her book club friends join forces to seek justice on her behalf; Andrea Canning reflects on some of the most determined women she's ever met.

The House on Shalimar Way

When Britney Ujlaky disappears, a small Nevada town bands together to track down an unknown cowboy who's a potential suspect; Some stories are memorable for their twists, people or locations; this one checks all three boxes.

Open Desert

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A series of reports chosen by "Dateline" correspondents that answers the question they most often get asked -- what their most memorable story is and why.

S6 E4 | Behind the Closet Door