In the 1990s, an immigrant single mother raises her teenage son in the Canadian suburbs, determined to provide a better life for him than the one she left behind in South Korea.

Eun-ho, a free-spirited gumiho, avoids good deeds and romance to steer clear of becoming human. Her carefree life takes an unexpected turn after a fateful encounter with a self-absorbed soccer star.

While investigating a serial murder case, Detective Han Tae Joo gets into a catastrophic incident. When he wakes up, he finds himself transported back to 1988, appointed to work at a police station in a small city. Believing he is there for a reason, he tries to solve the case from the past in hopes of finding a way back to his life in 2018.

A gifted writer who's the youngest editor-in-chief ever at his publishing company gets enmeshed in the life of a former copywriter desperate for a job.