I was under the impression that, at least from a work standpoint, Eddie and Elsa were, by mutual consent, using (helping) each other. The revenge will be exclusively Eddie's, won't it? He is relying as much on Elsa's advice, wily cunning and guidance (and to some extent drive) as she is relying on him for the figure work, data and the delivery system to the target. What does she specifically stand to gain from her contribution to Eddie's revenge on his boss?
Elsa is clearly internally driven and far too smart not to have an agenda of some kind, but what that may be, as yet eludes me (no surprise there).
It seems to me that romantic attraction to Eddie is, by this time, a complete and utter no-hoper.
So is Elsa waiting for Eddie to depose his boss and see him, in the process, collapse under the weight of his own insecurities to then step over the bodies and into the position herself?
Or is she, perhaps, enamored of Alice and using Eddie as her access point to gaining Alice's confidence and subsequent allegiance?
Or perhaps, more intriguingly, is Elsa planning to both team up with Alice on a personal level (sexually too?) and, at the same time, exploit the daughter of the boss's presence and elevated status within the corporation to go, alongside Alice, for overall control of the whole business?
Elsa does not seem to command the personality to be able to pull that off, either with the board or anybody else in the locality of the position. However, she might see Alice as the figurehead behind which she can operate in comfort.
So, by the time the dust settles will Alice have replaced and become Eddie to Elsa?
Who the hell (apart from its creator, of course) bloody knows? But it is fascinating to watch...