To keep her ancestral home from falling apart, a marquise (Madeleine Renaud) turns the place into an inn. Slow business threatens the house once again, until bank robber César Maricorne (Yves Montand) and his two dopey partners happen by. They hope to lay low at the inn, unaware that the proprietors will kill for the stolen cash. One hilariously failed murder attempt follows another in this comedy that co-stars Maria Schell and Jean Rochefort.