A merry Christmas eve turned out to be miserable and vindictive when Reina's best friend went missing and was declared dead. Being able to see people's death time at night and as a secret intelligence agent, she took the mission of finding her best friend's missing body, and the serial murderer who, mysteriously, cuts and leaves his victim's pinky finger. With the help of Reina's childhood best friend who can often see the future through dreams, and her colleague who has prosopagnosia - known as face blindness, will she be able to achieve the retribution and justice she yearns for? Or will she be caught by the trap the serial killer prepared?