A renowned surgeon, Kim Joon Young, struggles to balance his demanding career with his neglected role as a father to his daughter Eun Jung. Tragedy strikes when he witnesses his daughter's untimely demise, only to find himself reliving the same day over and over. Joining forces with Lee Min Chul, the driver of the ambulance that rushed to the scene, Kim Joon Young embarks on a desperate quest to unravel the mystery behind the time loop and alter the course of fate.
A Day
A father's desperate attempt to save his daughter's life leads him down a morally ambiguous path, only to be confronted with the consequences three years later as he becomes stuck in a recurring cycle of time.