Su Yang was admitted to a prestigious university but was forced to work in a factory because her family favored sons over daughters. She worked hard to earn tuition and leave, but she was incompatible with the factory environment. After a dinner party in the dormitory, all the roommates were killed, and Su Yang became the only survivor and was deeply suspected. As the police investigate, the disguise of her boyfriend Zhou Cheng and the schemes of his family come to light one after another, and multiple mysteries and conspiracies are intertwined. Su Yang woke up in a desperate situation and relied on his wisdom to peel off the cocoon layer by layer, finally revealing the truth, getting out of the predicament, and defending his life.