On New Year's Eve, Fanyan Yang returns home to help her brother with a family crisis. His daughter, Xiaofang, is pregnant and unmarried, and her relationship with Xiaowei Qi has ended. Fanyan uncovers many connections to the unborn child.

A woman from 2018 and a man from 1999 wake up in the same bed. They discover they can time travel using the bedroom door, and make changes to their eras, but that their destinies may not be in their own hands.