To save money, modern-day double-destitute Song Zhaozhao rents a haunted house. Unexpectedly, the house's antique bed connects time and space, leading Song Zhaozhao to share the bed with Xiao Jingtian, the tyrant of the Yan Dynasty from 3,000 years ago. She strikes a deal with Xiao Jingtian, traveling through time to deliver modern-day flu medicine to the ancient world, helping him overcome a difficult situation. When Xiao Jingtian is questioned by his elders, Song Zhaozhao successfully travels back in time and brings the supplies back.
