Hirugao (2017)

You'd think there was room for this deep dive into human desires and the messiness of relationships, but the drama just stumbled into this predictable mess of melodrama and characters you could barely see through. The characters were supposedly torn apart by the whole moral dilemma of their sneaky affairs but they did the bare minimum in that regard. Even the romantic tension felt too forced, superficial and lacking. The drama would've benefited from focusing on the main infidelity only. In comparison, all the previous points also applies to the KR version except that they were less drastic and detached than this one.