Late one night, Zhen Liu’s husband, Shen Xiaoping, was arrested. He's been missing for over thirty days. Zhen Liu doesn’t know the reason for her husband’s arrest, nor his whereabouts. Although she faces many difficulties, Zhen Liu appears to be leading a normal life. In reality, she projects her anxiety onto her daughter. Zhen Liu seeks help from her husband’s friend, lawyer, classmate, and business partner, each of whom is faced with a predicament. Everyone ventures to guess the reason for Xiao Ping’s arrest. Zhen Liu's former suitor, Xin Lv, arrives to help her. He feels deeply moved by how she has changed. Xin Lv relies on his social network to help Zhen Liu understand why her husband was arrested. Zhen Liu feels it's very unfitting to establish contact with the authorities. A police officer ultimately tells Zhen Liu why her husband has been arrested, allowing her to see clearly the randomness of his so-called criminal charges. Her husband's absence allows Zhen Liu to understand him better. Since her husband has been charged randomly, Zhen Liu stops cooperating with Xin Lv and his social network because she believes their method is meaningless. An erroneous deal with Xin Lv makes Zhen Liu feel tremendous resentment toward him, so she refuses his help, though he still clings to their original plan. Xiao Ping eventually returns home, though his return has little to do with everyone's efforts to help him.