The century-old shop "Tong Shun Xiang" run by the Liu family has passed down the unique craftsmanship of making ice crystal cakes from generation to generation. However, the father Liu Tingshen (played by Zhang Guoli) has always refused to pass the secret recipe to his son Liu Jiansan (played by Han Geng), which led to misunderstandings and estrangements between the father and son. Jiansan was angry and chose to leave his father to work hard. Many years later, Jiansan returned home to visit his father because he was seriously ill, and finally discovered that the secret his father had hidden for many years was related to himself...