My Perfect Stranger

News anchor Yoon Hae Jun (Kim Dong Wook) and publishing editor Baek Yoon Young (Jin Ki Joo) both struggle with unresolved issues from their pasts. Through an unexpected turn of events involving a mysterious time-traveling car, they’re both transported back to 1987. Hae Jun is on a mission to prevent a series of murders that occurred in his hometown, believing his father is connected. Yoon Young, meanwhile, is determined to stop her parents from marrying, hoping to change her unhappy present. Unaware of each other's true identities and individual motives, their paths repeatedly cross in the past. As they attempt to manipulate their respective timelines, they uncover shocking truths about their families, the murders, and their own intertwined destinies, forcing them to confront the true meaning of their present lives.