If you haven't yet seen the last episode of Killing Eve...
...don't bother.
There was something in the book that justified the title "Killing Eve", but that very important something never came up in the TV series making the title meaningless. (I won't spoil it for you.)
I'd strongly advise reading the books instead. They tell a much more engaging and exciting story. The TV series got lost this whole last season, and became so muddled I couldn't follow what was going on.
Not like the book which is always clear about exactly what's happening and why. The book takes you along on an exciting journey. The TV series does its best to lose you along the way, and doesn't seen to care if you understand anything that's happening.
Strange, seemingly superfluous characters who seem to behave randomly in the movie, like Pam and Carolyn, don't even exist in the book, that makes the book better right off the bat.
Get the book trilogy. If you like this kind of thriller, you will not regret it.