Qiao Cheng, an ordinary auto mechanic who seems innocent and harmless, even a little dull. He speaks softly in daily life and always looks at a loss when things happen. Everyone thinks he is easy to handle. But no one knows that this "purity" is all a protective color that he carefully disguises, and he hides in his bones a calmness and calculation that is far beyond ordinary people. His golden finger is able to sense other people's micro-expressions and psychological fluctuations, and he can easily detect lies, but never reveal them easily. His best friend Lin Yu is an elite white-collar worker in the eyes of everyone. He is glamorous, but he has long been secretly jealous of Qiao Cheng's "good luck" and secretly planned a strange life-swapping conspiracy. When he woke up, Qiao Cheng found himself in Lin Yu's mansion, possessing the other person's identity and wealth. Lin Yu, in front of him, lived a seemingly ordinary but hidden life. A suspenseful game surrounding betrayal, disguise and the truth begins. While maintaining his "pretending to be innocent" persona, Qiao Cheng uses his golden fingers to trace the truth of the exchange, dismantle every step of Lin Yu's calculations, and step by step in the psychological battle, uncover the unknown secrets behind this life exchange, and also tear apart the hypocritical mask of the betrayer.
