Han I Su and Jo Hae U were heading towards having the perfect teenage romance before one night their world shatters. Hae U, thinking I Su is dead, attempts to move on with her life, and I Su, having learned the truth behind what happened, returns, determined to get revenge on those who destroyed everything, even if it means bringing Hae U down. As I Su works to complete his plan and Hae U rushes to stop him, they both start realizing nearly everything they've known has been lies and the truth goes much further then they could have thought.
Shark is like most revenge thrillers, tightly plotted, dark and to a certain extent, melodramatic. And like other thrillers, the show does fall victim to a few vices, mainly it gets pretty slow and a bit too convoluted to follow easily. There are a lot of interweaving threads (and photos) that complicate matters and sometimes you have to stop and sort out who knows what and whose who.
The acting is passable, nothing ground-breaking and a lot of people were underutilized but the cute moments were great.
The show is a nice watch, although you may want to watch something mindless and fluffy afterwards.