After drifting in Beijing for many years, Lin Shanshan returned to her hometown in the south and transformed the old house she once lived in with her grandmother into a homestay. Here, she experienced four wonderful and heartwarming stories with her guests.

Kai, a reclusive young man who believes he's being filmed by aliens, forms an unexpected bond with his new roommate, Xiaole. When Xiaole mysteriously vanishes, Kai must piece together the puzzle of his lover, uncovering a portrait both familiar and strange.

Have you ever wondered how you will age? Four 60-year-olds, two twilight loves, their love is kind and pure, romantic and intense. In this limited journey of life, before it is too late, one wants to say "I love you!