Sal, a hot single professor, moves across an auto service shop and rocks the world of young repairman Arnel. Ever since Sal came over to get her car fixed, Arnel's skilled hands have always been busy. But can he still fix the problems that come with it?

After 8 years of marriage, a childless couple named Clark and Eileen meet a little girl who one day, came knocking at their door claiming to be Clark's child. Despite the unexpected situation, the wife accepts the child and temporarily fosters her while figuring the next steps. Meanwhile, Clark investigates the child's history while Eileen begins to develop an odd and eerie relation with the child.

Lisa, after being inspired by a Korean drama, writes a book and meets a fan named Kim Gun Hoo. He invites her to tour Korea, and they begin to date. However, Lisa suffers from PTSD after her mother's suicide and forgets her memories of Gun Hoo. She disappears without a trace, but a year later, Lisa reaches out to Gun Hoo, and they reunite. Gun Hoo offers Lisa a copy of "To Room 19," and they promise to stay together this time.