The Pink Panther 2

Holmes and Watson board a passenger train bound from London to Edinburgh, to guard the Star of Rhodesia, an enormous diamond worth a fortune belonging to an elderly woman of wealth; but within the first hour of the trip, the woman's son is murdered and the diamond stolen and any of the passengers in their car could be the killer thief.

A treasure-hunting mastermind assembles a team for a life-changing adventure. But to outwit and outrun threats at every turn, he'll need someone even smarter than he is: his estranged sister.

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.