Killer Grannies

A killer no one would suspect: Grandma.

DocumentaryCrime

Killer Grannies is a true-crime documentary series on Oxygen True Crime that profiles shocking real-life cases where grandmothers turn into cold-blooded killers. Hosted by June Squibb, each self-contained episode follows investigators as they unravel the sinister plots and dark deeds of a seemingly innocent, maternal matriarch of a family.

Nov 9, 20251 seasons8 episodesReturning SeriesEN

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June Squibb

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Seasons

Season 1

8 episodes

Premiered Nov 9, 2025

Episodes

1–6 of 8

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Ep 1

Granny's Fatal Fantasy

Nov 9, 2025

45m

A beloved chef and cooking instructor is found shot to death at work, and investigators are left baffled. But when a loved one's strange behavior draws their attention, detectives discover the killer has been right in front of their eyes.

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Ep 2

Granny's Garden

Nov 16, 2025

45m

An ailing man isn't seen for weeks, and his family and friends grow concerned. When his wife is confronted about her changing stories, her revelation shocks the community...and everyone who knows and loves her as a dedicated grandmother.

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Ep 3

Granny's Addiction

Nov 23, 2025

45m

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.

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Ep 4

Granny's Under the Bridge

Nov 30, 2025

45m

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

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Ep 5

Granny's Boarding House

Dec 7, 2025

45m

A 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.

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Ep 6

Granny's Word v Granny's Word

Dec 14, 2025

45m

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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