High school sweethearts Jung-woo and Soo-yeon were separated in a horrifying tragedy that continues to weigh down on them as adults. Now a guilt-ridden detective, Jung-woo has been desperately searching for Soo-yeon for years, but when he crosses paths with her again, she has already become someone else with a new identity.

• Park Yoo-chun
• Yoon Eun-hye
• Yoo Seung-ho
• Yeo Jin-goo
• Kim So-hyun
• Ahn Do-gyu
• Han Jin-hee
• Jang Mi-Inae