Lu Yunshen, the legitimate son of the Lu family, was sent to the mountains at an early age and became a disciple of a mysterious master. Together with his younger brother Gu Qingshan, he learned many skills such as investigation, fighting, and secret arts. Ten years later, he returned to Shanghai. What awaited him was not family glory, but a series of secret room murders that shocked Shanghai - his biological father was accused of murdering the housekeeper in bizarre ways, and the Lu family was in turmoil.
In order to clear his grievances, Lu Yunshen had to reveal what he had learned and teamed up with his childhood sweetheart Shen Qiushui, a Chinese detective in the concession, to overcome many obstacles. A stage actress "melted" in public, a century-old antique hid a blood curse, a mummy was discovered in a bank vault... A series of bizarre murders followed one after another, which actually involved the infiltration of foreign forces, the smuggling of national treasures, financial shady and drug networks. As the investigation deepened, Lu Yunshen discovered that he was not only tracing a single case, but also the focus of the entire era of corruption.
His close friend Gu Qingshan sacrificed his life to expose the Japanese conspiracy, allowing Lu Yunshen to transform from a "case solver" to a "game breaker". When he saw clearly the corrupt nature of the Kuomintang regime and came into contact with a group of underground party members who were firm in their beliefs and willing to sacrifice, he resolutely chose a more difficult but hopeful path.
From an aristocratic son to a revolutionary, Lu Yunshen finally dedicated his unique skills and all his family fortune to the red torch in the dark night. Side by side with Shen Qiushui, he continued the silent and thrilling battle on the occupied Shanghai Bund until dawn broke.
