Cha Ji-yoon is a 7th-year corporate worker who's tired of both work and dating. She crosses paths with Kang Si-woo, the cynical boss with a terrifying reputation. Unexpectedly, she regains spark in her life as she gets to know the kindness behind his stern words. Amid repeated commutes, accidents at work, and failed relationships, the two become each other's irreplaceable anchor.

At the brink of going to hell, Yee-jae must cycle through twelve separate lives and twelve separate deaths in this reincarnation drama.

Joo Joong-won is the stingy and greedy CEO of Kingdom, a conglomerate that includes a major department store and hotel. He meets the gloomy Tae Gong-sil, who started seeing ghosts after an accident. Their lives take a new turn as they work together to deal with the terror and sadness brought about by the spirits, while delving into a kidnapping incident in Joong-won's past. And unknowingly, they fell in love with each other.