During the turbulent Republic of China period, Shanghai Beach was like a huge stage, where countless joys and sorrows and confrontations between good and evil were staged. Detective Lin Yu, who once "died" while pursuing a huge criminal organization, quietly returned.
At this time, Shanghai was experiencing internal and external troubles, gangs, warlords, and foreign forces were intertwined, and criminal incidents occurred frequently. Lin Yu relied on his extraordinary observation and logical reasoning abilities to shuttle between various complex cases. From the mysterious death of the son of a wealthy businessman to the kidnapping of the president of a chamber of commerce; from the mysterious case of campus theft and suicide to the disputes caused by warlords' treasures, every case is full of mystery and danger.
During the investigation, Lin Yu made a lot of friends. They work hand in hand to fight against the forces of darkness.
As the investigation deepened, Lin Yu discovered that these cases were actually related to a mysterious criminal group. This group attempts to control all forces and disrupt the situation in China for personal gain. Faced with numerous difficulties and threats, Lin Yu did not back down and launched a thrilling life-and-death battle with criminal groups.
In this showdown between justice and evil, can Lin Yu uncover all the mysteries and wipe out the criminal syndicate? In the troubled times of the Republic of China, where will Shanghai go with his efforts? A gripping legendary reasoning story begins here.
