Tsang Tsui-shan's first feature film, On the Road to Love, uses feelings to capture love and wandering. Three years later, the left-over woman who thought she had nowhere to go continues her journey. Her dream of acting is shattered, so she resolutely returns to Hong Kong from abroad to find her roots and rebuild her life. In the film The Big Blue Lake, she finds that some things can be repeated. Tong Ning plays a frustrated mature woman for the first time after marriage. She has to believe that there is always a way to solve things. She and the drama lover Tan Yanmei perform a delicate mother-daughter relationship. They meet their old classmate Zhou Junwei again and regain love and hope. The three people's superb performances match the faint Sai Kung hometown feelings in the film, which is full of Hong Kong people's memories of the old place and old dreams, and continues the family and human feelings that will never fade away.