In the 1930s, Shanghai was surrounded by crises, and various forces deliberately moved. Shen Qingtang, the first sister of Paramount, was coerced and rescued herself at the critical moment. Pearls were scattered on the ground, and black hats were covering people. The police station was plunged into a mystery by unique means. Lin Tingxia, the owner of Nanyang Department Store, swapped the identities of men and women and took charge of the shopping mall. Butterflies turned into bones, and the sound of orchids lingered. The investigation of the police station is complicated and confusing.
One after another cases have made the police department confused, and the secret of the hat is also being revealed.
