Wo was the first murderer in Gosford Park?

Cafe Society
1

OK, so I’m lame. Who was the poisoner in the movie Gosford Park? Was it the cook or the housekeeper? I seem to have missed that part. I know who the knifer was. Thanks

2

I believe it was the housekeeper, but I’ve only seen the movie once, so I’m not entirely sure. But I would lean more towards housekeeper.

~Ferry

3

Yeah it was the housekeeper (Hellen Mirren); because she poisoned him and then the son stabbed him when he was already dead.