Kim Soo-hyun experiences the unfathomable when her daughter is kidnapped and murdered. Discovering a miraculous ability to go back in time exactly two weeks before the event, Soo-hyun races against the clock to unravel the plot and save her daughter. But when a private investigator sheds new light on the crime, Soo-hyun uncovers a secret far more treacherous than she could have ever imagined.