I can’t remember being this bored when watching a series. I don't hate it, I don't like it. I just don't care. There’s nothing there that makes me want to keep watching.

Interesting characters? Hardly. Ji Bai is a super cop whose only weakness is that he works too hard. This man is practically perfect, leaving no room for character growth. As for Xu Xu, we know nothing about her background or what makes her tick. She’s supposed to be a genius profiler, but you either: 1) can’t follow her logic; or 2) figure out things faster than she does. Her drawing of cute anthropomorphic cartoons is more of a gimmick than a revelation.

Suspense? None. Xu Xu keeps walking into dangerous situations with no real plan. That is not suspense, it's stupidity.

Romance? Minimal, with no building up to it whatsoever. The one big kiss in the very end does not convince me that Ji Bai is that much in love with Xu Xu.

Acting? Could not save the series. The actors can only do so much with the material they’re given. Wang Kai, who has immense talent and charisma, could've picked a far better project than this. I won't judge Wang Zi Wen's acting, since she's severely handicapped by the character of Xu Xu as well as the poor direction.

Action? Quite good and cinematic in quality. It might work in a compressed time of a movie, but it doesn't hold my attention in a 21-episode drama.

Anything deep, at all? Nope. The show tries to get philosophical about a policeman's life and choices. Ultimately, it's a black and white world: all bad guys are scum and all Chinese policeman are incorruptible and good. This might as well be a propaganda piece for law enforcement.

The 6.5 rating might be biased high, because I’m always partial to Wang Kai. Like a snail, I can only slowly crawl my way towards the last episode.