Unlike other groundhog day type shows, this is different. As the protagonists attempt to gather clues by reliving the incident each time, they also test out different ways of trying to solve the problem. Each solution however leads to a different set of consequences. Thus, they have to map out the perfect script to avoid the potential downfalls/consequences.

The show is an interesting glimpse into the human psyche. It is far less annoying that some groundhog type shows and for once, it's refreshing that the characters aren't using their pre-knowledge of the situation to benefit and enrich themselves.

What I disliked. First, the police aren't allies. They suspect everyone and want to implicate everyone. Even a witness can become a suspect. They spend more than half of the time trying to avoid being implicated. Under that circumstance, why would anyone want to help the police?

Second, I was thoroughly disappointed by the ending. Each episode carefully went and plugged all the holes but the ending undid all that meticulously laid hard work. I felt the writer sacrificed a very tight storyline for the sake of propaganda.