I figured it out......they're both crazy!

Yup. That's the point of this movie to show how spanish mistresses and house sitters are completely insane. And what was up with the scene where the blond woman wants to have sex with him and he's watching the whale thing? Were they calling the blond a whale? Cause now that I think about that that's funny.

Closing statement....sex with Willem Defoe...yikes. He's charming and all but holy crap this movie scared me, seriously. BTW I saw this movie right after seeing him in Spiderman and eXistenZe. I like the drinking game for it though.