"Sunshine" depicts the maternal love of the mental retardation mom - Mua with her daughter - Nang. They are the people at the bottom of society, they work hard everryday by selling lottery tickets and picking up bottles. While the mother is silly, foolish, her daughter is quite smart and vivacious. Suddenly one day, Mua was accused of trafficking and possession of drugs and then she is under sentence of death. They all feel stunned by the calamity from the sky. Do they need any "miracle" to reunite again?