Late-night radio host He Xiaoran has spent years suppressing her past heartbreak after secretly loving her close friend, Xiao Shangqi, who pursued a relationship with their mutual friend, Chen Fei'er. To preserve their friendship, she kept her feelings hidden. However, eight years later, Xiao Shangqi returns after years abroad, bringing back memories she thought she had left behind.
During the Republican era, a group of frustrated people from the movie industry is invited in a luxurious mansion to make a movie out of a gruesome case that has recently rattled the city of Shanghai, in the hopes that it would turn into a huge sensation and make them famous. However, they never expected that the murderer would be in their midst and that the truth behind the case would be far more bizarre than their fictional movie plot.
Shanghai, 1927. A resourceful young police officer named Qiao Chu Sheng is on the trail of a brutal but devious killer. Realizing that the police force will need some extra help with this difficult case, he decides to form an elite crime-busting detective team. He reaches out to a young man who has recently returned from studying in Great Britain, Lu Yao. Qiao Chu Sheng has learned that Lu Yao has remarkable powers of deduction and a brilliant mind – and believes he can help crack this difficult case. To round off the team, he enlists the help of Bai You Ning, a focused young female reporter for a daily newspaper. A free-thinking, independent young woman, she has a strong sense of justice – and pledges to help catch the killer. The trio form a small detective squad that specializes in solving strange and unsettling murder mysteries.
