Series · 2025 · Documentary
A killer no one would suspect: Grandma.
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.
1 season · 8 episodes

Episode 01
Granny's Fatal Fantasy
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.

Episode 02
Granny's Garden
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.

Episode 03
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.

Episode 04
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 massive manhunt ensues but as authorities investigate, granny's wild story unravels to reveal a darker truth.

Episode 05
Granny's Boarding House
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.

Episode 06
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.

Episode 07
Granny's Killer Gravy
A veteran cop falls for a beloved grandma he hopes to spend the rest of his life with, but when a home cooked meal sends them both racing to the hospital - this granny's gravy, and her sordid past, are brought under scrutiny.

Episode 08
Granny's Wishing Well
A respected Fire Department Captain disappears during a fishing trip, but an exhaustive search turns up nothing. Almost two years later, a tip reveals a sinister tale of manipulation and a granny whose wishing well hides buried secrets.
based on 2 votes
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.
1 principal cast
Killer Grannies is available to stream on Flicksy via 6 verified sources, aggregated from publicly available embed providers. The documentary has 1 season and 8 total episodes, rated 9.5/10 by 2 viewers.
Killer Grannies has 1 season with 8 episodes in total.
Killer Grannies is currently in production and returning for new episodes.
Killer Grannies airs on Oxygen.
Killer Grannies first aired on November 9, 2025.
Similar series
Unsolved Mysteries
1988
Someone You Thought You Knew
2018
Fred And Rose West: The Search For The Victims
2021
Dateline
1992
Le dernier soir
2019
This Is Not Hollywood
2024
Blind Faith
1990
Minnet av ett brott
2018
En Mördares Bekännelse
2019
Homicide Squad New Orleans
2025
Sveriges Största Konstkupper
2023
Heist
2021
Exhibit A: Secrets of Forensic Science
1997
42: The Answer to Almost Everything
2021
Elles ont tué
2024
Mafia Connection
2022
Sarjakusettaja
2024
Cold Hearted
2018
The Widower
2014
American Nightmare
2024