- The Mackintosh Man (1974)
PG | Thriller
- Murder on the Orient Express (1974)
PG | Mystery
- The Mortuary Assistant (2026)
NR | Horror/Thriller
- Morning Show Mysteries: A Murder in Mind
NR | Crime drama/Mystery
- Murder Once Removed
NR | Mystery
- Murder at the Hotel (2025)
NR | Thriller
- A Model Murder (2024)
NR | Thriller
- Murder, Lies & Marriage (2025)
NR | Thriller
- A Miracle on Christmas Lake (2016)
NR | Holiday/Mystery
- Miss Fisher and the Crypt of Tears (2020)
NR | Adventure/Mystery
- Miss Pinkerton
NR | Mystery
- Morning Show Mysteries: Countdown to Murder
NR | Mystery
- Morning Show Mysteries: Murder Ever After
NR | Mystery
- Matchmaker Mysteries: A Killer Engagement
NR | Crime drama/Romance
- My Boyfriend's Wife Is Dead
NR | Thriller
- May The Devil Take You Too
NR | Horror/Thriller
- Murder on Maple Drive
NR | Thriller/Mystery
- My Killer Reunion (2023)
NR | Thriller/Mystery
- Memorias del ángel caído
NR | Drama/Thriller
- MadS (2024)
NR | Horror/Thriller
- Medusa (2022)
NR | Horror/Thriller
- Morning Show Mysteries: Death by Design
NR | Mystery
- My Daughter's Double Life
NR | Thriller/Mystery
- My Father's Other Family
NR | Thriller
- The Manny
NR | Drama/Thriller
- More Bitter Than Death: An Emma Fielding Mystery
NR | Mystery
- Million Dollar Lethal Listing (2024)
NR | Thriller
- Murder by Television (1935)
NR | Mystery
- The Mystery of Mr E
NR | Drama/Mystery
- Mosquito State
NR | Drama/Horror
- Mommy Meanest (2024)
NR | Thriller
- Malicious Mind Games
NR | Thriller
- Masquerade (1965)
NR | Comedy/Thriller
- My Family's Killer Affairs (2025)
NR | Thriller
- Mastemah
NR | Drama/Horror
- A Mother's Fury
NR | Thriller
- The Mystery of a Hansom Cab (2013)
NR | Mystery
- The Monster Within
NR | Horror/Thriller
- Matchmaker Mysteries: A Fatal Romance
NR | Crime drama/Romance
- My Mother Stole My Life (2024)
NR | Thriller
- My Child Has My Doctor's Face (2024)
NR | Thriller
- A Murder Between Friends (2026)
NR | Mystery
- Murder Company (2024)
NR | Action/Historical drama
- My Amish Double Life
NR | Thriller
- Murder and Cocktails
NR | Comedy/Mystery
- My Mother Looked Just Like You (2025)
NR | Thriller
- Moonlight Murder
NR | Mystery
- Man in the Attic (1953)
NR | Thriller
- Murder in Nashville (2025)
NR | Thriller
- Match, Meet, Murder (2025)
NR | Thriller
- Midnighters (2017)
NR | Holiday/Horror
- Mystery Island: House Rules (2025)
NR | Adventure/Mystery
- My Two Husbands
NR | Thriller
- Murder 101 (2006)
NR | Mystery
- Mandrake
NR | Horror/Thriller
- My Nanny Stole My Life (2024)
NR | Thriller
- Marshmallow (2025)
NR | Horror/Thriller
- Metamorphosis (2019)
NR | Crime drama/Drama
- Murder (2013)
NR | Thriller
- Mystery Road (2014)
NR | Crime drama/Thriller
- My Only Fan
NR | Crime drama/Thriller
- My Sister's Double Life (2025)
NR | Thriller
- Mandy (2018)
NR | Horror/Thriller
- Muzzle (2023)
NR | Crime drama/Action
- McVeigh (2024)
NR | Drama/Thriller
- Murder at the Country Club (2023)
NR | Thriller
- Morning Show Mysteries: Murder on the Menu
NR | Crime drama/Mystery
- The Mill Killers
NR | Horror/Thriller
- Murder at the Derby (2025)
NR | Thriller
- My Husband's Mistress (2026)
NR | Thriller
- Monte Carlo Nights
NR | Mystery
- My Husband's Killer Affair (2024)
NR | Thriller
- Morning Show Mystery: Mortal Mishaps
NR | Mystery
- Mountain Top
NR | Drama/Mystery
- Mga Mata Sa Dilim (2019)
NR | Action/Thriller
- My Professor's Deadly Secret (2024)
NR | Thriller