Taking care of his father who had a stroke, Chunfai has to tolerate his wife's gripe about all the troubles it brings. His brother, a university lecturer, do nothing to help. He is busy with an experiment: he disguises himself as a street sleeper to elicit the reactions of people around him. What will be his results?王春輝在家中照料中風的父親，惹來妻子梅林埋怨，只能默默忍受。他的哥哥是大學講師，一直沒有分擔照顧父親的工作，梅林對他甚為不滿。這個時候，春輝的哥哥做了一個實驗，扮作露宿者「伏屍」在屋苑內，觀察住戶或保安有什麼反應，到底會出現什麼結果呢？
