Heo Joon (Yoon Tae Young) is a doctor. His wife was killed by an unidentified man right in front of him. Since the murder, he quit his job at a university hospital and searches out for his wife’s killer. He opens a secret late night clinic to capture the killer. Hong Na Kyung (Ryu Hyun Kyung) is a surgeon at Heo Joon’s clinic.

• Yoon Tae-young
• Wang Bit-na
• Ryu Hyun-kyung
• Baek Won-gil
• Choi Jung-woo
• Yoo Yeon-seok