Amongst the drama of prison, which comes with built in drama, it turns out that she isn't quite so perfect and that Jean is actually pretty sweethearted lady, with tragedy behind her, and the two get swept up in romance. Unfortunately, this is at a time when homosexuality was still officially illegal, providing an unpleasant counterpoint to their desire.
This was actually a pretty good story. I reread it nearly a year later, because I never got around to reviewing it, and it held up very well to a second reading. Probably a good pick for reading while waiting for the next Orange is the New Black episode.