personal vendetta

His masterpiece 'Oldboy' and 'The Handmaiden' obsessively explore revenge cycles and personal vendettas with psychological depth and visual poetry.

He constructs entire narratives around personal vendettas, most notably in 'Kill Bill' and 'Inglourious Basterds,' celebrating the catharsis of retribution.

His spaghetti westerns, particularly 'The Good, the Bad and the Ugly,' mythologize personal vendettas as existential confrontations between morally ambiguous characters.