While investigating a serial murder case, Detective Han Tae Joo gets into a catastrophic incident. When he wakes up, he finds himself transported back to 1988, appointed to work at a police station in a small city. Believing he is there for a reason, he tries to solve the case from the past in hopes of finding a way back to his life in 2018.

• Jung Kyung-ho
• Park Sung-woong
• Go A-sung
• Oh Dae-hwan
• Ro Jong-hyun
• Kim Jae-kyung
• Kim Ki-cheon
• Kim Young-pil