i don't know that it needs a trigger warning. others might not react the same way i did. it could be that it was just too close to my own feelings at that time when i first saw it. it certainly is not graphic as far as details of abuse - more raw emotions.
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"That you are here - that life exists, and identity; that the powerful play goes on and you may contribute a verse. . . What will your verse be?" Robin Williams as John Keating in "Dead Poets Society"