WhenhelearnshisdaysarenumberedoldcountHervédeKéraudrendecidestohideinasecretalcoveandtodiethere,justtoannoyhisheirs.Asaresultofhisbodynotbeingfoundthelatterwillhavetowaitforfiveyearsuntiltheycaninheritthecount'smoney.Veryupsettingindeed,allthemoreastheyarerequiredtokeepuptheKéraudrenestateinthemeantime.Tocollectmoney,nephewsandniecesorganizeaSonetLumièreshowatthemanorwhilebusilylookingforthemissingcorpse.But,unexpectedly,theygetkilledinturns.Murdersoraccidents?Jean-Marie,hisfiancéeMichelineandhiscousinEdwigeinvestigateandfinallysucceedinexposingtheculprit.And,thecount'sbodybeingfoundbychance,allgoesbacktonormal.