Thanksgiving isn't really known as a horror movie holiday but there are some Turkey Day horror flicks worth watching:
Blood Freak (1972)
A biker gets a job at a turkey farm and agrees to act as guinea pig for some chemicals that need tested, failing to anticipate the murderous side effects.
Home Sweet Home (1981)
An escaped mental patient steals a station wagon and makes his way to the Bradleys' Thanksgiving celebration, where he plans to make them a little less thankful.
Blood Rage (1987)
On Thanksgiving, a woman and her adult son who are stalked at their remote apartment community by the son's unhinged twin brother who has escaped from a psychiatric institution after allegedly killing a man in cold blood years earlier.
Poultrygeist: Night of the Chicken Dead (2006)
When a fast food chicken restaurant is built on the site of an ancient Native American burial ground, the displaced spirits unite with the ghosts of exterminated chickens and transform into Native American chicken zombies seeking revenge!
Séance (2006)
Five college students left alone at Thanksgiving in their dormitory, an old converted Manhattan building, decide to hold a séance in an attempt to rid their dorm of a troublesome little girl ghost, but inadvertently bring back the little girl's killer.
ThanksKilling (2009)
A possessed turkey terrorizes five college students during Thanksgiving break.
ThanksKilling 3 (2012)
Fowl-mouthed villain Turkie carves through the likes of a rapping grandma, a mindless puppet, a wig-wearing inventor, a bisexual space worm, and their equally ridiculous friends on his quest to recover the last copy of "ThanksKilling 2".
Kristy (2014)
Violent thugs terrorize a young woman who's alone on a college campus for Thanksgiving weekend.
The Oath (2018)
When Chris, a high-strung news junkie, and his more levelheaded wife learn that citizens are being asked to sign a loyalty oath to the president, their reaction is disbelief. As the Thanksgiving deadline to sign approaches, the combination of sparring relatives, Chris' own agitation and the unexpected arrival of two government agents sends an already tense holiday gathering completely off the rails.
Pilgrim (2019)
A woman invites Pilgrim reenactors to her family's Thanksgiving celebration in an effort to remind them of their privilege and help them bond with one another.
was PIFF
and they have that IG/youtube comedian in it, dude named Reggie Couz is one of the main actors. Interesting. 
but was changed after being deemed not threatening enough. Jason only started wearing the iconic hockey mask in 
