Kim Soo-Hyun, a grieving mother, is given a miraculous chance to rewrite fate when time rewinds 14 days before her young daughter’s tragic kidnapping and murder. Determined to prevent the heartbreaking event from happening again, she teams up with Kang Shin-Woo, a private investigator with his own hidden motives, diving into a perilous race against time. As Soo-Hyun and Shin-woo uncover hidden secrets and face dark forces, every moment becomes critical in their desperate fight to save a life hanging by a thread. Their initial mission to protect one child soon reveals a deeper, more sinister conspiracy lurking beneath the surface.