I had high expectation from this drama after going through its rating , summary, genre and its remake tag ( yeah I skipped reviews). It started off promising but as the drama progressed ,the story line got messier, They wanted us to find it mysterious but all we could find was just a clueless writing . I was hoping the female characters to be bold and smart but they came out as surprisingly dumb ones and some were not even good at acting.Only Sang Hoon was somehow interesting character and I guess he was keeping me hooked up till the end. If anybody found this drama thrilling , then your threshold for thrill is really really low.