To raise funds for his father, Sanqing, who has faced social ostracism, goes undercover at the Life Hotel near the hospital, aiming to disrupt its operations and coerce owner Xiao Lin into agreeing to its demolition. However, as they spend time together, Sanqing forms bonds with the hotel’s residents and learns of the guests’ life stories. His internal conflict escalates, turning a simple undercover assignment into a matter of personal integrity. The hotel’s destiny impacts not only its inhabitants but also Sanqing’s longing for home. Yet, his indecision triggers a deeper crisis…