A painting of Su Wenli from years ago leads to murder. Not long after the famous painter's widow visits Su Wenli, someone breaks into her house to steal the painting.
After years of studying in Europe, Su Wenli returned to Shanghai from Paris. She attends a dinner hosted by a school friend whose husband dies mysteriously.
The mean and nasty editorial assistant of Linglong Magazine is found dead in the office before getting off work. The murderer is among the six of them: the chief editor and employees. Who did she offend?
A cotton mill technician dies in a weaving machine. Su Wenli suspects the mill owner but when the owner dies after falling off a building, Doctor Liu Ruqing becomes the prime suspect.
The owner's sister takes over the mill while Taozi is instructed to work undercover and investigate. But she finds herself in grave danger when she discovers the identity of the murderer.
Investigation in the nightclub leads Su Wenli to discover the dancer had stolen an important item from the nightclub lady owner. She is killed after trading it with a mysterious person.
Su Wenli secretly searches the circus owner's safe and finds clues. Meanwhile, two prisoners die in a fight. Su Wenli deduces that it is related to the murder in the circus.
A theatre manager complains to Su Wenli about a ghost in the theatre but Su Wenli dismisses it. Until strange things happen one after another and she is nearly killed by a falling object.
A sudden death in the morning and a burglary at midnight in a bookstore. Is one of the books holding a secret? While the lady owner seems to have a secret that she cannot tell.
The murderer turns out to be a person pretending to be a ghost. Later, Su Wenli finds out that the case is mysteriously linked to an actress's suicide twenty years ago.