Wan Xi was once a hugely popular singer, but she gradually disappeared from the public eye amid disputes with her performance agency. Hoping to make a comeback, she announced that she would appear on “A Song for You,” the country’s highest-rated variety show. But after she failed to show up for filming and could not be reached, the production team blacklisted her. Almost at the same time, a resident called the police to report a foul smell coming from a neighbor’s home. When officers forced their way inside, they found that the dead woman was none other than the missing singer, Wan Xi! To express their regret and remember her, the production team made a retrospective video about Wan Xi. Unexpectedly, it gave the police a lead in their hunt for the killer...