Tom King spends three quarters of his story in the past. In the early meetings between Catwoman and Batman. His story revolves around a game of cat and mouse as Selina continues to break into Wayne manor.
Basically it is background in the cat and bat romance; and King then flash forwards to Bruce and Selina in their golden years. It is a bit heavy handed, yet touching and helps prepare for the current engagement and romance.
The art is very suitable as it has an old fashioned style and feel to it. The artists somehow make dank gray and dark tone of the comic beautiful.