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.

• Ahn Jae-hyun
• Ji Jin-hee
• Koo Hye-sun
• Sohn Su-hyun
• Jin Kyung
• Jung Hae-in
• Jo Jae-yun
• Jung Hye-sung