Hmm where do I start on describing this drama..... intrigue, excitement or mystery with bites of romance something a long this line of thought. Boy I love Bo Jin's character and actor he is sooo smooth; yet, cute when he means to be. I'm sorry I'm going into fan-girl mode (>o<). Wait a moment, I shall control myself ummm. ............. Oookay I'm back on topic - yes the acting was awesome, original and very well developed with out the wasted effort on unnecessary episode. Now that I'm on this idea every episode made sense. Hence very enjoyable moment at every critical junction, even he English actors did a good job in their roles. On soundtrack, I can't and will never complain cause it had this mellow, jazzy vibe that just worked with the story line in mind; because, I'm telling every note transferred each case issues that had me on constant alert of what will happen next. This needs to re-watch several time the only reason I haven't is it a psychological crime drama so be warned about scenes. There is just so much I could talk about in this drama, but I will not get start instead i recommend this drama to anyone interested in criminal investigation viewed from the criminal behavioral psychologist. Anyone who love a good thriller without the whole intense horror associated with the genre. Anyone who loves not just a good mystery, but a great one that just keeps you guess till the very end.- What, Why, When, Where and Who - the five 'W'..