In
London, Sir Charles Braithwaite, Commissioner for
Scotland Yard, struggles to solve an
organized crime case involving a gang which has been performing robberies across Europe. Britain's
Prime Minister decides to request outside help to solve the case, which the press view as an insult. French Inspector Jacques Clouseau is the one sent to assist. Sir Charles briefs Clouseau on the case. Three suspects were in custody, but two, Frenchie LeBec and Steven Frey escaped. The only suspect still in custody is Addison Steele. Sir Charles warns Clouseau not to trust anyone, even those in the Yard, as he is suspicious that there is a
mole among their ranks. Meanwhile, Steele works as the prison's
barber. When Clouseau arrives, Steele is cutting the hair of the warden's son, Clyde Hargreaves. Once Clyde is finished, Steele tells Clouseau that he does not know who the leader of the gang is, but only knows him by the name of "Johnny Rainbow." Clouseau is then tricked into a shave by Steele. During the hot towel treatment, Steele uses chloroform to subdue Clouseau and escape custody. At Scotland Yard, Superintendent Weaver gives Clouseau experimental disguised weapons to help with his investigation. Frenchie later attempts to assassinate Clouseau, who accidentally kills him with one of Weaver's weapons. Sir Charles is annoyed that Clouseau killed Frenchie, as they were unable to interrogate him. After realizing his own food has been poisoned, Clouseau finds a matchbook from a nearby inn called Tudor Arms on Frenchie's body. At the inn, Clouseau searches for more leads and is seduced by two women that subdue and kidnap him. They pour rubber on Clouseau's face, which they use to make a mold of his likeness. Clouseau accidentally kills the owner of the inn by crushing him with a bed and realizes that he has a Johnny Rainbow tattoo. Clouseau goes to Frenchie's funeral in France to look for more leads and is attacked by the gang. Weaver's maid, Lisa Morell, arrives and rescues him. She is actually an agent for
Interpol who has been sent to help him. Clouseau does not believe Lisa's story and arrests her. However, his superior, Préfet de Police Geffrion, confirms she is telling the truth. At the gang's hideout, Johnny Rainbow is revealed to be Clyde Hargreaves. He has used the rubber mold to create several masks that resemble Clouseau's face. Rainbow's plan is for the gang to
rob thirteen Swiss banks simultaneously, while Clouseau takes the fall for the crime. Clouseau learns of the plan and goes to the hideout to investigate. Two of Rainbow's men, Bomber LeBec and Stockton follow Clouseau and attempt to kidnap him, but Weaver arrives and foils this. Weaver, who is actually the mole, slips a train ticket from Le Havre, France to Zurich, Switzerland in Clouseau’s pocket and walks away. On the
train, Weaver attempts to kill Clouseau and later poses as him in Zurich. Lisa warns him about Weaver, not realizing she is really speaking to Weaver in disguise. Lisa is kidnapped by the gang, and Rainbow puts on the disguise as Clouseau. Weaver and Rainbow feed the Swiss authorities false information about the robberies and order the bank presidents to put all their funds into the waiting armored cars outside for "safekeeping." The money is then switched into fake
Lindt & Sprüngli vans. They take the money to one of Lindt’s chocolate factories and package the stolen money like chocolate bars and then put them into a ship on the
Limmat River. The real Clouseau is arrested for the robberies and cannot convince the authorities of the truth. Weaver attempts to escape by disguising himself as Clouseau, but is killed in a fight with the real Clouseau. This proves that Clouseau is innocent. He goes to rescue Lisa, chases after Steele and is eventually captured by Rainbow's men. Clouseau escapes using one of Weaver's weapons and sinks the ship. The heist is foiled, but Rainbow and his men escape. Clouseau returns to France after saying goodbye to a grateful Sir Charles. ==Cast==