Kara no Kyoukai Movie 8: Shuushou

Both are Epilogues of their respective series that dive deep into the character's psyche and tie in the loose ends of everything that happened so far. Both series are told achronologically and this final installment really shines in the psychology of the characters mind. Both involve interesting and deeply philosophical dialogue with unique visuals. 

Both animes contain dialogues quite complex. Involving mystery of both parties