Kwon Dohoon is an expert sniper and a secret agent working for the National Intelligence Service. To conceal his true identity, he lives a double life as a regular trading company employee, keeping even his wife, Kang Yura, in the dark. Though he is occupied with his work, Dohoon cherishes his wife deeply. Meanwhile, Yura, a dedicated homemaker, harbors a secret. Their tranquil existence is thrown into turmoil when Jo Taegoo emerges, posing a threat to their carefully crafted façade.

• Jang Hyuk
• Jang Na-ra
• Chae Jung-an
• Kim Nam-hee
• Lee Soon-jae
• Kim Kang-min
• Yun Sang-jeong
• Gabee