The seven victims died one after another, and the death condition of each victim was very similar: naked body, no fatal injuries, only two soybean-sized blood holes on the neck. Therefore, this case was called the "Vampire Serial Murder Case" by the media. Cha Yingzhen, who was responsible for investigating the case, was the leader of the Seoul Serious Crime Team. During the investigation, she discovered that the seventh deceased had a special identity. Following the clues, her suspicions were directed at Zheng Ruixian, the head of the Xiaoyuan Group. The police's challenge to the big chaebol was destined to be a failure, but their confrontation had unexpected results because of the special "aura" exuded by Officer Cha. Because Zheng Ruixian hides an ulterior secret-bloodthirsty. Since an accidental attack five years ago, her body has completely changed. She is photophobic and can only stay alive by drinking human blood regularly. Cha Yingzhen's special blood is a fatal temptation for her. So, were these series of deaths caused by vampires? Is Zheng Ruixian that bloodthirsty and murderous demon? What was the truth behind the attack on her? The most terrible thing is that as the investigation deepens, Cha Yingzhen, a policeman, finds that he has fallen hopelessly in love with the suspect.
Concept: Vampires and love both belong to mysticism. There is no way to explain why they happen, but no one can deny their existence.