Lin Shu, graduated from a top 2 prestigious school, is a staunch materialist and has devoted his life to using science to crush all monsters and monsters. Until she took a job as a tutor that paid ridiculously high hourly wages. The employer's youngest son, a little boy as beautiful as a porcelain doll, always hugged his knees and told her: "Sister, someone is crying in the closet." "On the swing in the garden, there is a faceless aunt sitting." The whole family was gloomy about this, and the master who paid a lot of money was nagging. Only Lin Shu smelled a hint of "humanity". She held the young master's painting in one hand and the periodic table of chemical elements in the other, and calmly analyzed: "Young master, look, this 'ghost' in the painting is actually the visual residue caused by the spontaneous combustion of phosphorus powder under certain circumstances." "The crying in the bedroom? That's the reverberation caused by the thermal expansion and contraction of the old pipes at night, superimposed on the sound of the wind, commonly known as 'tube crying.'" As she uncovered the truth about the "haunting" step by step, she discovered that everyone in the huge manor was suspected. The worried mother, the extremely controlling father, the housekeeper with evasive eyes, and the nominal "big brother" who made things difficult for her but always appeared at critical moments. Lin Shu adjusted his glasses and smiled. Pretending to be a ghost, right? Okay, watch me use science, logic and a little bit of psychology to pull you "ghosts" out from under your skin one by one!