This drama had a really good pace from start until the 15th episode, where the mysterious person who had killed those who were trying to uncover the mystery of a killing that took place 18 years beforehand, was found and it felt too quick for his reveal with 5 episodes remaining. That caused a lot of problems with the pacing afterwards, as it got boring quick with Shaun Tam losing his sanity after murdering the killer to save his own reputation. The chemistry between Shaun and Mandy Wong's character felt lackluster and did not feel natural at all, which should not have exist as not all dramas need to have love interests in them unless necessary.

OST is good for the most part, as Fred Cheng sung most of the songs for dramas in 2020 which was nice since I like his voice.

Overall, it had a good backdrop for the story, just executed poorly at the end. It was still an enjoyable drama nonetheless when trying to unravel the mystery.