the first thing you must be aware of is the intensity of this story. if there was a darkness barometer, 1 being the darkest and 10 the brightest, this show is on 2. it's on 2 because they managed to put some light every now and then. don't watch if you are facing hard time.

2nd: the story is very complex, and the first 4 episodes are like 4 different movies about the same characters having something like a slip of dimension's experience. it's very unsettling. and then things come together and you start to understand what is going on. or do you?

3rd: that's a very good drama. my 8 score is a little harsh, I was taken aback by the darkness of the story, it wasn't what I needed to watch right now, but I liked it nonetheless and found it addictive. so, if you like dark stories, or if you want to watch something more "serious" and less superficial, it's a great choice.
enjoy!

when to watch: this is not a story for relaxation after work. watch it on week-end, with friends.
audience: this is definitely not for under 18 audience. everything is hard and there is a lot of life's complex lessons, even for grown ups. let children enjoy this pearl after they grow old.