This show was devastating both times I watched it and after rating it 9 for my first watch, I have to raise it to 10 after a rewatch. This story is so well written and clever and casted absolutely perfectly. Park Ji Hoon did such an incredible, incredible job and his performance haunts me. I cannot wait for season 2 and I implore everyone to give this drama a chance! It's short, concise and excellent! Wht a brilliant work of art this story was, with fascinating and complicated characters who all played their roles perfectly!