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A true-crime series that chronicles the most shocking and unpredictable cases involving a killer no one would suspect: Grandma. In every self-contained episode, a rollercoaster ride of a case unfolds as investigators dig deep and chase every lead until they finally catch their unexpected killer. Through gripping archival footage, selective recreations and cinematic imagery, and in-depth interviews with investigators, prosecutors, friends and family, every episode will peel back the plastic cover on the couch to uncover a world of sinister plots and evil deeds unpacking why and how these maternal matriarchs of the family can turn deadly.

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2 episodes from 1 season available on demandOriginal air date: Nov 2, 2025
TVPGHD
Try for free - cancel anytime
2 episodes from 1 season available on demandOriginal air date: Nov 2, 2025
TVPGHD
Oxygen True Crime • Wed Nov 25, 3:00pm UTC • 1h

S1, EP3 "Granny's Addiction"

A Florida woman is shot in her vacation rental, and the hunt for her killer connects back to a murdered Minnesota farmer; clues point to a doting grandmother living a double life, who then leads authorities on a multi-state chase.

Oxygen True Crime • Wed Nov 25, 4:00pm UTC • 1h

S1, EP4 "Granny's Under the Bridge"

An Oregon grandmother found wounded on the roadside tells rescuers that her husband is missing after a boat sale went awry; a manhunt ensues but as authorities investigate, granny's wild story unravels to reveal a darker truth.

Oxygen True Crime • Wed Nov 25, 5:00pm UTC • 1h

S1, EP5 "Granny's Boarding House"

A California Granny is thought of as a Mother Teresa to the downtrodden thanks to the boarding house she runs; but when a social worker raises fears for a missing client, investigators find that Granny's carefully tended garden hides horrors.

Oxygen True Crime • Wed Nov 25, 6:00pm UTC • 1h

S1, EP6 "Granny's Word v Granny's Word"

An Army vet is found dead on his farm; it first looks like the tragic suicide of a troubled veteran, but police uncover a sprawling cover-up and two grannies whose dueling stories collide in a troubling she said, she said murder mystery.


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