Watch Killer Grannies (2025) Free Online

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.

Killer Grannies is a 2025 documentary and crime TV series starring June Squibb. The series has 1 season and 8 episodes.

  • First aired: 2025-11-09
  • Seasons: 1
  • Episodes: 8
  • Status: Returning Series
  • Genres: Documentary, Crime

Killer Grannies cast

June Squibb

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