The Return of the Pink Panther establishes Peter Sellers once again as the bane of the existence of chief detective Herbert Lom, who is forced to reinstate Sellers when the Pink Panther diamond is stolen from its native museum by a mysterious burglar.
Suspicion falls on Christopher Plummer, ostensibly retired phantom jewel thief who decides he must catch the real culprit to save himself. Catherine Schell plays Plummer’s wife, who turns out to be a decoy in more ways than one.
Sellers’ work takes him into contact with Peter Arne and Gregoire Aslan, native police under pressure from general Peter Jeffrey to find the gem: with befuddled concierge Victor Spinetti and perplexed bellboy Mike Grady, both at a posh Swiss resort hotel; and periodically with his valet Cato, played by Burt Kwouk.
All hands seem to be having a ball, especially Schell, whose unabashed amusement at Clouseau’s seduction attempts often matches an audience’s hilarity.