After programmer Lin Chen faces layoff, he moves into Chenguang Residential Compound, intending to resettle his life. However, due to an old mark on his wrist, enthusiastic neighbor Auntie Wang is reminded of a past event. Relying on scattered clues, the neighbors continuously guess and misunderstand his frugality, kindness, and calm handling of matters as a deeply hidden background, successively triggering hilarious misunderstandings. From electric scooter scrapes to job changes, Lin Chen consistently insists on speaking facts and keeping rules, and amidst accidents, he gradually approaches the past affairs of the Lin family, facing years of estrangement with his long-separated father, Lin Zhengxiong.