The sinopsis: Ji-Hyun's (Nam Gyu-Ri) life seems to be storybook perfect. Her parents adore her and her friends all seem to admire her. Ji-Hyun is also engaged and set to marry her fiance Min-Ho (Bae Su-bin) in just a few days. Meanwhile, Yi-Kyung (Lee Yo-won) is a woman who is completely distraught over her life after her boyfriend died in an accident, and frequently contemplates suicide. She works the night shift at a convenient store, while sleeping in the afternoons.
On a fateful day, Yi-Kyung gets off a bus and wanders around. She then stands in front of a busy street and attempts to kill herself by walking into oncoming traffic, resulting in a massive car pile-up. At that time, somebody saves her life by pulling her back. At this moment, Ji-Hyun, who is driving nearby, fails to hit her brakes and crashes into a semi truck that has stopped in the middle of the road. Moments later, Ji-Hyun walks out of her car in a daze. She is shocked to see her body being carted into an ambulance. The only person who seems to notice her standing in the road is a man on a motorcycle. The man on the motorcycle is the Scheduler (Jung Il Woo) - an angel of sorts who takes souls to their final destinations.
Ji-Hyun follows her body into the ambulance and watches as the paramedics attempt to revive her body. At the hospital, Ji-Hyun meets the Scheduler again. The Scheduler tells Ji-Hyun that since it was not yet her scheduled time to die, she is given a chance to recover from her vegetative state and live. That is, if she succeeds in her mission: she must gather three pure teardrops from three people who truly love her, apart from her family, within the next 49 days. Ji-Hyun instantly thinks of her fiance and two best friends and is certain she will live again. Ji-Hyun then takes over the body of the suicidal Yi-Kyung in her quest to find three such persons. Ji-Hyun gets a job at a restaurant owned by her high school friend Han Kang (Jo Hyeon-jae).
At this time, Ji-Hyun's memory starts to return to her. Before the accident, Ji-Hyun remembers going to see her best friend to show the bridesmaid dress she had chosen for her. When she arrived, Ji-Hyun saw her best friend and her fiance sitting intimately together in a car. She was then driving to confront them when the accident occurred. Finally coming to her senses about their betrayal, Ji-Hyun now realizes that it won't be so easy to find three people who genuinely love her.