In this winsome comedy, an entitled Economics professor pursues a tactic to buy an ailing widow’s mansion for nothing, but he quickly realizes that his seemingly foolproof strategy won’t be as easy as he thought.
Charles Dreyfus, who has finally cracked over inspector Clouseau's antics, escapes from a mental institution and launches an elaborate plan to get rid of Clouseau once and for all.
Inspector Jacques Clouseau, smitten with the accused maid Maria Gambrelli, unwittingly turns a straightforward murder investigation into a comedic series of mishaps, testing the patience of his irritable boss Charles Dreyfus as casualties mount.