Agatha Christie's Poirot1989

Hercule Poirot:
[while talking about the possible reasons for Arlena Stuart entering the cave] But then the question becomes why did Arlena Stuart enter the cave?

Hastings:
Perhaps she was hiding from someone.

Hercule Poirot:
Hastings... Once again you come up with an explanation that makes everything clear.

Chief Inspector Japp:
Not to me it doesn't.

Hastings:
You mean she was afraid of someone?

Hercule Poirot:
I mean, Hastings, that there is evil on this island. And the murder that took place here was the work of a mind that was brilliant. But there is one thing the killer did not expect, eh - the mind of Hercule Poirot. En bien. It is now time for these two minds to meet, and the truth at last must come to light.