The plot got me hooked from the first episode, which is rare for a k drama, so points for that. It's the kind of show that doesn't let you get bored or feel like using your phone while watching, it truly pulls you in. The revenge plot was well executed, and the acting of the villain was top notch. I think this drama shows how rejection and humiliation can drive people into insanity and pure evil, so I love how deeply the villain's backstory was portrayed . That said, the ending felt rushed and the romance between the leads wasn't properly developed. The chemistry was a bit off too.