I can't remember ever crying because a tv show had ended. It's been 20 minutes since the i've watch the last episode and I'm still crying.
Gosh what a ride this Kdrama was! I felt so many emotions, i felt so frustrated, i felt so much angst... and i felt so much love.

This is an amazing drama... with flaws, but amazing.

The cast is great but Lee Joon Gi's acting is out of this world, my god!!! I have no word to describe his acting, the way he seems like the perfect father and husband and suddenly gives us glimpse of how evil he could be, everything is in his eyes and his jaws, simply amazing. The way he shows his emotions and restraint and when he feels lost... wow amazing! It's my first time watching him in a drama and wow...

The story is gripping! i was on the edge of my seat most of the time, praying like crazy (and I don't believe in god...), yelling at the tv, whishing they wouldnt do what they did... and i could not predict any of what happened (and believe me i tried, i've been watching and reading crimes stories for 40years!
But this is also where the flaws lies :
1) too many coincidences, most of all the car accident... it's too convenient and it bothered me. I liked what resulted from the car accidents with the parents and all, but it was way too easy..
2) The FL is also a bit of a problem, The actress is very good but oh god, sometimes she acts stupid.. she's supposed to be very smart and insigthful, but for the sake of the drama she's sometimes acts very dumb.
3) Warning Spoilers (skip to the very end if you don't want to know): Third big flaw for me is the memory loss... It erases all the emotions Hyun Soo felt when he believed that she was dead and his sacrifice. It erased all his growth and the realisation that he's not a monster, he is a human being and he can feel. It kinde ruined the ending and this is why it didn't give this drama a perfect ten. I kinda liked the ending anyway cause there was beautiful scenes between our ML and FL, but i wished they didn't go in that direction. I which they could have explored his feelings and made him realized that he was normal, his sister knew and she never really told him. But the memory loss all brings him to finally tell her why he name his shop that way and it's soooo beautiful... it shows how much he really really loves her... So i'm very torn by the ending...
4) Spoilers also : I don't understand why they say that the father killed himself... how can they say that when his head was smashed by a rock ? grrr

All in all, it's a fantastic drama, a must watch, don't hesitate! watch, feel, endure... it is so worth it!!!

Edit (Spoilers): i've just rewatched the entire kdrama and i've changed my mind : the last episode ant the memory loss is int fact very interesting. He slowly remembers but doesn't trust his feelings (yes he feels despite the memory loss), his journey back to his wife is very interesting and finally very beautiful. In my first review i said that the memory loss erased his growth but I was wrong. He does realize in the end that he's not abnormal, that he feels and loves.
2nd viewing was better than the first, what en incredible ride.... and Lee Joon Gi is absolutely fantastic, his eyes conveys so many feelings, the way he transforms from Hee Song to Do Huyn su just with one look, it's perfect.. He was born for this role.
I will watch it again and again and again.
I finally gives it 10 stars. There's very few tv show that gave me that many emotions.