Yu Yuzhi's same-sex affair was discovered by his father when he graduated from college, so he was sent to a nursing home, where he met a group of "lunatics". He was sent there because his father regarded him as a "lunatic."
Under the peaceful life of the sanatorium, there are many secrets surging: why the director's office of the sanatorium is still brightly lit in the middle of the night, why his brother and sister have acquaintances in the sanatorium, and how he and the people in the sanatorium have an ever-increasing relationship...
Concept: Everyone has a future and a past