Changing my review here since the Kdrama just finished this week and my opinion changed with its ending. So... I was in love from the very first moment I started watching it, I absolutely loved the beginning of the whole story and I got very high expectations to the story, BUT... Somewhere in the story it starts to get way too boring, the FL that I loved started to piss me of. And there's a lot of "white spaces", I mean, things they didn't mind to explain to us. Like... Why does that vampire (the villain) hates Seon Woo? What are their past? Why does Do Sik have that illness? And why the FL is Hye from the past with different face? And why is there someone who has exactly the face of his past love but she's not the Hye won he loved? I mean, did I lost something? ahhaah idk, I got confused. And the ending... A totally disappointed. Is he dead? Is he alive? We simply DON'T KNOW hahaha. I think they needed more episodes to explain the past to allow us to understand the present. Anyway, I'm 100% disappointed and I don't recommend anyone to watch it. I think they rushed everything and messed up with the whole story.
All this thing about the past reminded me of "Bulgasal" But the difference is that in Bulgasal they explained everything to us so we could understand the story, but in Heartbeat they ignored the past of the characters and they didn't explain important stuff to us, so we were left with an empty feeling, like... "Did I miss something?" Basically, it was a generic story with a main villain without a depth background, a girl who's supposed to have some importance to the story but in the end she was just a useless character (Hye Won) A random character that, for some reason they don't explain to us with more depth, helps the ML (The cat man) I mean... I think the story had more potencial, but they just transformed it in a weak, generic and boring romance. I mean, even "Twilight" is a better vampire story than this. And one last thing, the ML friends are always showed in the story with highly importance, but... How did they meet? Why do they have this strong friendship? ... *Sigh* anyway... I'm disappointed, I was hoping for more than we got.