[Texaggie79]

The end of the movie suggests that Arbuthnot is on his way to becoming the next US (Hitler-like?) president.

That's a new perspective.

[Southack]

"It looks like Luke was right about him though, as he kills off the guests even though he has already pesuaded them by debate. The end of the movie suggests that Arbuthnot is on his way to becoming the next US (Hitler-like?) president."

No, no, no. You missed the symbolism. The liberals were poisoned with their own views/wine. Norman didn't kill them. He didn't taste the wine or "know" that it was poison. He merely correctly reasoned that the liberals should rightly drink what they served.

Their own behavior killed them. Had they only placed a bad wine (as they told norman at the start of dinner) at the table, they'd still be alive...