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Season 1 – Killer Grannies

Play trailer 1:28 Poster for Season 1 – Killer Grannies Nov 2025 Documentary Crime Play Trailer Watchlist
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A true-crime series that chronicles the most shocking and unpredictable cases involving a killer no one would suspect: Grandma. In every self-contained episode, a rollercoaster ride of a case unfolds as investigators dig deep and chase every lead until they finally catch their unexpected killer. Through gripping archival footage, selective recreations and cinematic imagery, and in-depth interviews with investigators, prosecutors, friends and family, every episode will peel back the plastic cover on the couch to uncover a world of sinister plots and evil deeds unpacking why and how these maternal matriarchs of the family can turn deadly.
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Killer Grannies — Season 1

Killer Grannies — Season 1

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Episodes

Episode 1 Aired Nov 9, 2025 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. Details Episode 2 Aired Nov 16, 2025 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. Details Episode 3 Aired Nov 23, 2025 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. Details Episode 4 Aired Nov 30, 2025 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 manhunt ensues but as authorities investigate, granny's wild story unravels to reveal a darker truth. Details Episode 5 Aired Dec 7, 2025 Granny's Boarding House A California 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. Details Episode 6 Aired Dec 14, 2025 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. Details Episode 7 Aired Dec 21, 2025 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. Details Episode 8 Aired Dec 28, 2025 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. Details

Season Info

Director
Christopher Mitchell
Executive Producer
Julie Insogna-Jarrett, Seth Jarrett, Josh Bingham
Network
Oxygen
Rating
TV-PG
Genre
Documentary, Crime
Original Language
English
Release Date
Nov 9, 2025