In this narrative, Han Hyo-joo portrays a surgeon whose father is a well-known comic book artist. When her father mysteriously disappears, she hurries to his studio to find him, only to encounter an enigmatic man covered in blood. This encounter leads to her abduction by the bloodied stranger, marking the start of their intertwined tale. Set in 2016 Seoul, the drama unfolds across parallel dimensions. It is characterized as a suspenseful romantic melodrama about “a man and a woman who exist in the same era but inhabit different worlds.”