建筑公司总经理李明浩因老同学项志华恳求,将母亲手术费借予对方周转,约定一月归还。期满后项志华失联抵赖,导致李母手术延误。李明浩多次催讨无果,发现项志华夫妇生活奢靡却恶意拖欠多笔债务。。When he learns his days are numbered old count Hervé de Kéraudren decides to hide in a secret alcove and to die there, just to annoy his heirs. As a result of his body not being found the latter will have to wait for five years until they can inherit the count's money. Very upsetting indeed, all the more as they are required to keep up the Kéraudren estate in the meantime. To collect money, nephews and nieces organize a Son et Lumière show at the manor while busily looking for the missing corpse. But, unexpectedly, they get killed in turns. Murders or accidents? Jean-Marie, his fiancée Micheline and his cousin Edwige investigate and finally succeed in exposing the culprit. And, the count's body being found by chance, all goes back to normal.。