He suspects sir Charles Litton, the notorious Phantom.

4 seconds sound clip from the Curse of the Pink Panther movie soundboard.

You can hear this line at 00:45:41.559 in the DVD version of the movie.

Quote context

[...]

- You realize what happens if he finds that cursed diamond?

- We'll have to return the money to the insurance company.

- I've already spent it.

- What's the alternative?

- Make sure he doesn't find the diamond.

- Hmm. Well, obviously, the first thing to do is to figure out how the thief got in.

(MAN SCREAMING WHILE FALLING IN WATER)

- I don't think we've got a thing to worry about.

- That's what we thought about Clouseau.

- He suspects sir Charles Litton, the notorious Phantom.

- He's booked the evening flight for the south of France.

- Oh, the south of France. Should be beautiful this time of year.

- Unless you happen to fall off the grand corniche.

- I just had word that he's arrived in the south of France.

- When he left Nice airport, he was followed by two members of the Lugash secret police.

[...]