In the 37th year of the Wan Li Period of the Ming Dynasty, there were successive murders in the county seat of Jiangnan County. The identities of the dead were different and unrelated to each other. The corpses were arranged in bizarre poses, and there was a sentence left at the scene of each case. As the apprentice of the first victim, Xiaohu Kuaiqu Sanren cooperated with his friends to launch an investigation. With the deepening of the investigation, the three religions and nine streams, local farmers, workers and merchants of all colors appeared one after another. Amidst the fog, an old case from ten years ago surfaced. Who would the murderer be and for what purpose?

The former "street gangster" Li Qingrang (Huang Xuan) is released from prison and re-employed in a series of obstacles, and his chance encounter with an old acquaintance Wang Daji (Dong Jewel), so that he carries a conspiracy to join the "Home for the Sick", which hides what unknown transactions? And what kind of thrilling story will he collide with the hot boss of Lai Fu Hotel (Liu Yan)? As conspiracies and conflicts continue to emerge, on the one hand there are patients who are more like family than those who spend time together, and on the other hand there is an old acquaintance who throws money-making olive branches, what should he do, and whether the "Home for the Sick" Lai Fu Hotel can be saved from danger. ......

The kind and tolerant grandma (played by Hui Yinghong) reunites with her granddaughter (played by Liu Haocun) who was accidentally lost twelve years ago. The grandfather and grandson have gone from being estranged to relying on each other.