Dumped by her boyfriend of 15 years for gaining weight, a lawyer gets help from a hotshot personal trainer to get in shape and turn her life around.

Park Ji-sang, a surgeon, leads a double life. While he tries to save his patients' lives, on the other hand, he is also a vampire who constantly craves for blood.

Dong-Suk grew up as a smart young boy, but came from a poor family background. He is now a successful prosecutor and comes back to his hometown for the first time in 14 years. There, he happens to meet his first love Hae-Won and falls in love with her all over again.