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Set on Thanksgiving , the film follows 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 .
 Thanksgiving
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Thanksgiving