TV series
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.
Availability
Checked Jul 22, 2026
Killer Grannies premiered November 9, 2025. We don't have a confirmed streaming, rental or purchase option yet.
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.
Choose an episode, then use the watch options above for the show.
Episode 1
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.
Where to watch Killer GranniesEpisode 2
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.
Where to watch Killer GranniesEpisode 3
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.
Where to watch Killer GranniesEpisode 4
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.
Where to watch Killer GranniesEpisode 5
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.
Where to watch Killer GranniesEpisode 6
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.
Guest stars Terry Quillen
Episode 7
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.
Where to watch Killer GranniesEpisode 8
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.
Where to watch Killer GranniesEpisode information updated Jul 25, 2026
Available now in United States
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June SquibbHost
Terry QuillenMartin Griesbauer
OxygenUnited States
Jarrett Creative GroupUnited States