Everyone always has an unknown side, some hidden personality traits or character flaws. The show is themed on different personality traits such as selfishness and control freak, and in each episode, guests are invited to participate in some games, tests or psychological tests without knowing the theme of the episode, facing various situations such as buying the wrong breakfast, sexy girls "messing in" into the filming scene, and frequent accidents during filming, and clinical psychologist Dr. Zhang Chuanyi (Dr. Amos) observes and analyzes their behavior and interprets their hidden psychological traits. I hope that by "peeping" into the heart, we can deepen our understanding of ourselves and the people around us.