i decided to watch this one because of my new found love for kim seon ho and i dont regret watching it...
the drama is set in the subway station and showed the kind of cases the subway police has to deal with... their job was pretty much calm and quiet with some petty cases here and there until the FL joins them... she is extremely reckless and will do the exact opposite of the rules and regulations a police officer must follow...

i liked the overall story and the villian and the mystery... there are only two things i dont like... the way the FL's character was written and the length... the drama could have been tightly packed without any romance and focusing mainly only on the cases... by the end, it felt like the police was unnecessarily playing cat and mouse with the villain just to reach ep 16...
the FL and her reckless behaviour came out as irritating rather than badass... dont know whether its the writer's fault or the director's, i just couldn't connect with her or sympathize with her... its not like moon geun young is a bad actress who cannot portray her role properly as she was amazing as the 2nd character... the fault lies with the makers... there is a fine line b/w being badass and annoying... the FL crossed that line when she put the ML in difficult positions repeatedly and unapologetically for her own personal reasons... also they made the entire police department dumb and ignorant just so she can shine... thats quite unreal... it would have been fine if she was shown as this super-smart go-getter kind of character before she joined the police force but they show her to be just a very ordinary girl who was leading an average life... suddenly after just 2 years she is smart enough to put an entire group of experienced police officers behind... its not even like she was in the force for 2 years... the FL remembering the entire subway blueprint is the only thing that seemed real as she was overly obsessed over it for 2 yrs... the makers overdid her character to the level i didn't sympathize with her when she was desperately looking for her mentally challenged sister... on the other hand i actually felt bad for the SFL even though she was rude and arrogant because what the ML did to her was unfair... he broke up with her for his own good and then moved on to another girl right in front of her without giving her a proper closure... her rudeness, jelousy and lack of empathy wasnt overdone to the level i felt irritated with her...

i liked how they showed what people who look after mentally challenged people go through... the way the ML looked after his mother is heartwarming... also they shed light on how women are violated in the metro stations and how men get away with it by hiding behind the crowd...

this drama is heavily underrated even though it has few flaws... i guess if kim seon ho did this after startup, it would have been more popular...