Sa, a middle-aged woman and an administrator of a public school, has to work hard to raise Khao, her junior high school daughter alone after her architect husband died recently. For Sa, she never thought that raising a child is difficult because Khao Hom doesn't seem to have any problems and obeys her well. However, she accidentally found some "secrets" of her own child on social media. Khao Hom began to seem like a stranger. As it turns out, she feels she has known nothing about her daughter. Mistrust arises, curiosity led to the need to investigate further even if it's the matter of her own daughter. She started to question how much do we actually know about people close to us in the world of social media.