Deep in debt, private detective Liang Yibao receives a mysterious job on a rainy night: investigate the bizarre disappearance of a wealthy businessman’s daughter. A strange silver powder at the scene activates the Supernatural Detective System. Following the System’s guidance, she is forced into a string of paranormal cases and meets Sheng Xin, a mysterious man with no memories but immense soul power. The two team up, following clues from both the “System missions” and the “kidnapper’s hints” as they investigate step by step. They discover that every case points to the “Bloody Wedding,” a massacre covered up ten years ago, and that the silver powder is a trace of a supernatural substance called “Soul Dust.” The mastermind, the “Collector,” seems to be after more than simple revenge: they are gathering “intense emotions” and “special souls” connected to the massacre to complete a terrifying ritual. As Liang Yibao and Sheng Xin solve one paranormal mystery after another and contend with other soul cultivators fighting over Soul Dust, their powers grow, and their relationship develops from mutual exploitation into a bond forged in life and death. In the end, they must face the Collector and the true mastermind behind them. As they expose the full, bloody truth, they must decide whether to seal the calamity or find some way to “end” this painful cycle that has lasted ten years.