When I first saw the poster for this show, my reaction was 'eh' - but boy, was it misleading! Hello Monster is a show that I'll carry with me for a long, long, long time! The psychology in this one is intense, whether it be more tangible such as predicting another person's moves due to their thinking process or more theoretical in nature, such as the age-old argument of nature vs. nurture. The show is quite thought-provoking, adequately hilarious and thoroughly entertaining! Story: Almost flawless, if I had to put it simply. Many crimes are related to an overarching theme and while the later cases are not as police procedural in nature as the previous ones, this shift of focus makes sense. There's nothing I like more than a good ol' police procedural and this sure gave me a nice bit of it! The way each character's story intertwined was nice, to me. Though at some points I felt it was predictable - it wasn't as much of a 'whodunnit' as I would've expected. For example, I thought it was pretty easy to pinpoint out who Min and Lee Joon Young were - but on the flip side, I feel like the focus on the psychological battles of the characters was more crucial than a whodunnit. The characters are 'real' - there's no other way to put it! Especially Cha Ji An and Son Myeong Woo, whose characters I absolutely adored! Also, as mentioned before by many others - this has an open ending, which I don't like as a principle but I can see why it was done as so. One more episode would've helped, however since the last episode was very choppy. Many also talk about the weak romance plot but I thought it was very realistic? Especially with Hyeon's personality, I think witnessing his growth was essential before any sort of romance happened. Kudos to the writers for an extremely believable romance! Acting/Cast: This was really flawless! I've always liked Seo Inguk but to see him in this type of a role was a delight! Jang Nara is amazing, she really gives the depth to Ji An's character. Portraying strength and vulnerability easily, her performance could be second to none. The first surprise was Choi Wonyoung - my God, he's amazing beyond reason! Actors that can act through their eyes are a rare breed and Wonyoung does that with ease, emoting easily with his gaze! Park Bogum was easily the other surprise - I was used to seeing him be the MC of Music Bank but he's good at acting, too! Looking forward to so much more from him, especially as one of the leads in Reply 1988 - you have a new fan, Bogummy (I know it's a bad nickname but it's his Twitter handle, I'm not kidding)! The support cast was fantastic, everyone acted well! The casting was beyond fabulous, especially as the child actors and their adult counterparts were most believable - even down to little mannerisms! Music: The BGM sounded a bit BBC's Sherlock-y near the beginning but the actual OST is fantastic and fits the mood of the drama well! Rewatch Value: Ready to watch it over and over again! Overall: Slam dunk. That's all.