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.
Episodes Season Season 1 · 0/8 0/8 watched · 2025
S01E01 Granny's Fatal Fantasy 2025-11-09 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. more
S01E02 Granny's Garden 2025-11-16 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. more
S01E03 Granny's Addiction 2025-11-23 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. more
S01E04 Granny's Under the Bridge 2025-11-30 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. more
S01E05 Granny's Boarding House 2025-12-07 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. more
S01E06 Granny's Word v Granny's Word 2025-12-14 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. more
S01E07 Granny's Killer Gravy 2025-12-21 45m
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. more
S01E08 Granny's Wishing Well 2025-12-28 45m
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. more 
