In The Matrix Revolutions (2003), Seraph along with Morpheus and Trinity meets Merovingian:
Seraph: You know why we are here?
Merovingian: Come now, what kind of question is this? Of course I know. It is my business to know. Some might think this is a strange coincidence, but I do not. I am curious, though, as to how it actually happened.
What does "it" in "how it" refer to?