In Hongzhu, China, a woman’s dead body is found under a bridge by a river. She had a tattoo of a red daisy. Pursuing promotion, hot-tempered detective Liu Yibo boasts that he will solve the murder case within a few days. He Chen, who is suffering after the trauma of her sister being murdered, is deployed to work with him. A series of dead bodies each with a bloody daisy tattoo are found, and the new partnership chase the serial killer together. This murder case has not solved for 19 years, and they have no idea how their lives will be turned upside down. (Source: bifan.kr)Edit Translation