This drama is absolutely mind blowing. It made me laugh, cry, bite my nails in anticipation, fall in love, everything in a single drama. I love the way it progresses and the character development. The chemistry between the leads is perfect and the story line keeps you hooked throughout. I almost wouldn't have watched this drama if my friend hadn't urged me to watch it. When I first heard about there being 3 leads, I was wary of it being another love triangle drama, but thankfully it isn't that. If you love a good romance mixed with mystery and action, this is the perfect drama for you.

1. Cast and Acting:
We have Ji Chang Wook playing the male lead, Healer (Park Bong Soo /Seo Jung Hoo) and Park Min Young playing the female lead, Chae Young Shin. The chemistry between the two is sure to make you soft. I have always loved Ji Chang Wook's works and this one didn't let me down either. Park Min Young's acting has improved by folds in this drama. The way both of them portray their characters have you falling in love with them and their relationship every second of the drama. I love the cute, clingy moments they share and especially how Bong Soo gets jealous of Moon Ho. The innocent romance between the main leads develops over time into something more intense and passionate, bound to make you feel a rollercoaster of emotions. Yoo Ji Tae has a central role in the drama as well, acting as Young Shin's role model and long lost 'uncle' (more like an elder brother) Kim Moon Ho. The three leads have a very good harmony amongst them. The casting for the other roles are also very fitting. My favourite characters are 'Ahjumma' and Young Shin's dad.

2. Plot:
Every episode has a new turn of events and always keeps you on your toes. Every episode has a cliffhanger and honestly, I love how the present story is connected to the past. The intricate web of interconnections between the characters' stories is very well depicted. There is a perfect balance of romance and action and mystery. I loved the action scenes and how JCW never fails to deliver them perfectly.
The best thing about this drama, apart from the amazing smoking chemistry of the leads, is that the writer has written it thoroughly, leaving no loose ends. There are many clues throughout the plot and everything has been thought out from the beginning. The end is a tad bit rushed, but overall, hats off to Song Ji Na.

3. Music:
The OSTs for this drama are so beautiful! They are in perfect sync with the mood of the drama. My personal favourites are 'Eternal Love' and 'You'. Eternal Love is the main OST for this drama and honestly, it will make you feel such deep emotions with its lyrics and beautiful singing, you'll be left in tears. I have it downloaded and its one of my go to songs, its so good.

4. Rewatch value:
VERY HIGH. I have watched this drama twice and I'm definitely going to watch it in the future!

All in all, I highly recommend you to watch this drama. Trust me, you won't regret it. ;)