As it has been said, Season 2 was fantastically better than the first season in several ways! How? To list a few off the bat it had: 1) More mysteries 2) Less Filler-like episodes and 3) Great pacing and never a dull moment! Story I totally prefer this season compared to the previous since this time; the mysteries are much more intense and interesting compared to the ones from last season. Every episode is a thriller- making you wonder who was murdered and what happened to them! To start off with; the first episode had me hooked just like the first season which was awesome. The pacing was great and never a dull moment! The difference is that compared to the 1st season, the ghosts that are shown were not really revengeful 'I-will-kill-my-murderer-and-everyone' like, but rather- 'I'll-stay-silent-so-just-untruth-my-murder' kind of ghosts, therefore it wasn't as horror-based but rather mystery-based. Compared to last season, there was less noticeable filler-like scenes. If you watched the first season; you would probably know what I'm talking about. If not; in a nutshell- the filler like scenes that were more noticeable in the 1st season included long scenes of Na Yeong (the ghost) possessing her best friend Sun Woo to go out eating and go shopping or just to play around and get out of the police station. It seemed that those scenes took forever and resulting in me getting bored easily. Thank goodness there were less scenes of that in the 2nd season; of course Na Yeong still possessed the female lead (Ha Yoon) but it seemed that she possessed her more so that the cases could be solved faster or as if she was trying to retrieve the evidence since she knew where to look (courtesy of her stalking the murderers) Acting/Cast Most of the cast were from the previous season which I loved since they were all the best! (Too bad I didn't like Cheo Young's (played by Oh Ji Ho) hairstyle)... I still love Na Yeong (Jeon Hyo Seong) the best; her innocent yet trickster personality and funny scenes were a comic relief for me. The female cop lead this time Ha Yoon (played by Ha Yun Joo) was awesome- i would totally prefer her compared to the last female cop lead. The reason why? It's because she's useful. Don't get me wrong, Sun Woo (1st season) was great, but I find that she didn't have the drive or skills to solve cases on her own. Ha Yoon is naturally smart and had great analytical skills so she was able to keep up and plus Na Yeong's possessing, they managed to solve cases quite quickly! Na Yeong is an absolute gem in this season- since she wasn't bounded to the police station; she finally managed to use her ghost/invisible presence to her advantage and eavesdrop on people; gaining important information and teaming up with Cheo Yeong! I seriously love the two's interactions despite having zilch romance between them (unless you squint really hard) *Special mention! I LOVED how the directors casted like 5 actors from Vampire Prosecutor as a cameo appearance! I watched that drama and when I saw them, I was ecstatic!! Even the main from Dr. Frost appeared as a supporting character and I loved that all these actors/actresses partook some sort of mystery drama prior to this one/ or had experience in the mystery department! Music A perfect 10 in my case. I LOVED the music in the drama; from its instrumental soundtracks to actual songs; all of them were the best and I have them saved and downloaded! All I could think of during the first few episodes were that 'Man, the music sounds fantastic in this drama!' Rewatch Value I would definitely rewatch this! First season? Not so much but second season is a must for me. Conclusion? There were some unsolved mysteries from the first season that the directors didn't seem to mention at all or hardly mentioned. For example: What happened to Sun Woo? (Na Yeong's best friend). Sun woo knew the existence of her best friend's ghost, but no one mentioned her during the 2nd season. From what I know, Na Yeong is best friends with Sun Woo so why didn't even she mention her? Or, what happened with Na Yeong? How did she become a bit stronger and does everyone just now accept her presence? Well these aren't a major plot-hole/mystery but I did often find myself thinking about this since the ending didnt address my curiosity. I only hope they make a season 3!! Nevertheless, please give this drama a watch! 10 episodes is quite short so you have nothing to lose!