I'm not sure where the 15 hours went. It's wonderful to see a promising premise executed well via the smart plot and especially the actors. Extra points for the flawless production.

The plot is multifaceted and increasingly layered yet still SOLID. I especially appreciated that the main leads are given respective agency and how they COMPLEMENT one another's strengths and personalities in their attempt to solve the mystery and trying to prevent the explosion(s). Have already added more from Zhao Jing Mai and Bai Jing Ting to my to-watch list.

Even the villains in the story are given proper backstories and I appreciate the fact that they were not justified but still give a very logical (yet tragic) explanation.

One possible critique point for this drama is that I thought the head detective was portrayed in a way that I can only summarize as somewhat misleading. Perhaps I was reading into things but I think that could have been delivered better. However, I realize that perhaps there's a lowkey point being made here about the heroes here having to rely on themselves to dig deeper and investigate in order to solve the problem instead of on the system. If that is the case then it's one I appreciate well.

Definitely a binge-worthy drama through and through - perfect for those looking for a smart time loop story!