2. Yuqi Zhang, formerly known as Zhang Shuang, was born in Dezhou on August 8, 1987. She is a Chinese mainland actress and graduated from the Theatre Academy affiliated to Shanghai Theatre Academy in 2004.

3. In 2006, she played the heroine Miss Yuan in the Stephen Chow film Changjiang No.7. In 2008, she starred in the romantic comedy All Women Are Not Bad directed by Tsui Hark, and was shortlisted for the Best Newcomer Award at the 2009 Hong Kong Film Awards.

In 4.20 10, she starred in the film Tian Xiao 'e, which was adapted by the director from Chen's novel White Deer Plain, and was nominated for the best actress in the 62nd Berlin International Film Festival in 20 12, and won the most popular actress award in the 20th Beijing University Student Film Festival in 20 13.

5. Synopsis: In 1930s, Su, a Shanghai celebrity who had studied in Europe for many years, returned to Shanghai from Paris and was invited to attend Ma Minlan's family luncheon the next day, while Hu Yunlang, Ma Minlan's husband, fell down and died in the bathroom at home that morning. Detective Luo Qiuheng of the police station judged that Hu Yunlang died of arsenic poisoning, so he took the maid Xiao Tao to investigate. Although Xiao Tao was cleared of suspicion, she was fired by Hu Jia. When Su Liwen saw that she was clever, she took in Xiao Tao, who became her maid, best friend and detective assistant. Detective Luo was deeply impressed by Sue's agility and insight in case analysis, so they formed a golden partner and jointly solved a series of bizarre cases.