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  • Oxygen

Killer Grannies

A killer no one would suspect: Grandma.

  • 2025
  • Returning Series
  • Documentary · Crime
  • 1 season
  • 10.0/10

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.

Latest: Season 1 · 2025

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This true-crime documentary series, hosted by June Squibb, chronicles shocking real-life cases where the perpetrator is the person no one would ever suspect: a grandmother.

  1. E1. 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.

  2. E2. 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.

  3. E3. 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.

  4. E4. 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.

  5. E5. 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.

  6. E6. 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.

+2 more episodes — open all seasons to browse every episode.

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