In Spring 1945 in Gyeongseong, during Japanese rule over Korea, two young adults confront a strange creature born of greed, and battle against it for survival.
Revolves around an emergency call center and the employees who attempt to fight crime using the limited information they get from the urgent calls they receive.
This drama is a Crime Suspense centering around a headstrong anchorwoman who becomes the suspect in a murder case. Her estranged husband, who's a lawyer, decides to defend her and hence starts their journey to fall back in love.
Facing financial ruin, Jang Tae-sang agrees to track down a missing person - but two figures trail him. Meanwhile, sinister operations occur underground.
Yoon Chae-ok and Yoon Jung-won find a lead on Myeong-ja, leading them to a hospital. Soon, a calamity traps the two inside, leaving Tae-sang concerned.
Tae-sang decides to reenter the hospital, but discovers that Ryu Sachimoto is nearby. At the hospital, Chae-ok and Jung-won devise a risky rescue plan.
After coming face to face with the creature, Tae-sang and Chae-ok get captured. But as one plans his escape, the other stays to find a person dear to her.
Tae-sang steadfastly remains to save Chae-ok and the captives. On a mission to find her mother, Chae-ok learns the grisly truth - and confronts the beast.
With only 10 minutes to act, Tae-sang and Chae-ok risk it all to get everyone to safety. But just as all goes to plan, one of them may not get out alive.
An unlikely acquaintance becomes Tae-sang's ticket out of the hospital. After a touching reunion, Tae-sang and Chae-ok encounter a transformed Myeong-ja.
In order to rescue Chae-ok and stop the atrocity, Tae-sang and Jung-won forge a plan. But just as the coast seems clear, Yukiko Maeda stands in the way.
While looking for the same person, Ho-jae ends up saving Chae-ok, who's being chased by a mysterious being; Ho-jae begins to wonder more about his past.
Ho-jae tries to piece together everything that has been hidden from him; Chae-ok discovers that the atrocities of the past continue to the present day.
After a test subject wreaks havoc in public, Jeonseung Biotech goes into damage control; fate drives Ho-jae and Chae-ok to confront the company head-on.
Kang Dan Yi gets cold feet in her wedding but her best friend Cha Eun Ho brings her back. Many years later, he is a successful editor and professor. She is homeless and jobless. A kind stranger mends her broken shoe.
Dan Yi is hired by Gyeoroo publishing house as an unqualified assistant, the place where Eun Ho works as an editor. He is pained to see her condition and quietly sponsors her clothes, hair styling, and accommodation.
Dan Yi comes up with an idea at work but is put in her place. Another chance meeting with the stranger starts a new friendship. A drunk Eun Ho Cha finds himself outside the house of the woman he loves.
