Another potentially great movie dragged down by a annoyingly written lead... If it was not for that this would definitely have gotten a 9.5. The story is nothing new really but it is well executed, fun to watch and keeps the viewers guessing right till the end.

Lee Jong Suks character is lovable, well written fun, gorgeous from start to finish so I have no complaints what so ever about him while Seo In Guks character is portrayed as an annoying gluttonous airhead a role he does well and is not his fault but does drag down the score. However he does go thru some development and becomes a cute lovable puppy by the end of the drama.

Best part of this drama is the suspense, the friendship, the countless scenes of swimming men... and well Seo In Guk and Lee Jong Suk do make a great looking team (if I am to be superficial).

The side characters all play their roles well, and there are many familiar faces making you go oh there is that guy... Including a very young Nam Da Reum doing what he does best (playing a younger version of someone).

All in all definitely worth watching.