Agent Kang I-an (Yoon Kye-sang) awakes from an inexplicable coma with no recollection of previous events. Yet as twelve hours pass, he suddenly finds his consciousness transported into another body, forcing him to embark on a quest to find his true identity while trying to evade capture by the dubious Director Park (Park Yong-woo). Along the way, Kang I-an encounters the enigmatic Moon Jin-ah (Lim Ji-yeon), who claims to know who he truly is and how to end the unusual cycle. Written and directed by Yoon Jae-Keun.