The drama was solid and very straightforward without any irrelevant scene the only irritating thing was 2ML's yapping. Honestly Shin Ha Kyun and Jin Goo carried the show, Jin Goo was so different in it I couldn't believe he is the same guy from Descendants of the Sun.
There was a time when people used to enjoy dramas like I hear your voice , Romance is a bonus book without complaining about age gap but then so many dumb people started to watch kdramas. Kdramas should have stayed underrated.
It started off really well and was good until the end but then it became just flashbacks and fillers. Also the killer became very predictable by the end and was not impactful at all. For some reason I started to feel cringe watching the ending episodes.
https://www.asianjunkie.com/2018/02/11/lee-jin-wooks-accuser-sentenced-after-overturn-on-appeal-that-used-rather-odd-reasoning/