At first I thought this drama was okay for the first few episodes. As things got very intense I started to like it. Bo-Young Park really played an amazing job showing two different personalities in a professional and seamless change of a person being possessed. Her acting was definitely on point. The entire series really provided everything I like to see in a drama; Romance, Comedy, Supernatural (which was not too scary) and Crime. The story of everything really matched up and made me want to watch til everything was solved and investigations were lingering. Good series to watch and would recommend to see all the actors hard work and dedication for the outcome of this series.