Envy by Kathryn Harrison

I'm not sure where to begin. With the plot?  It is difficult to describe the plot without it sounding convoluted.  I’m not saying Envy is convoluted, but that my description of it would it be.  It is a complicated story, at the center of which is Will, a man in his mid to late forties.  He is married to Carole and father to Samantha and Luke.  Will has a nearly identical twin brother, nearly identical because Mitch has a birthmark covering 60 percent of his face.  The twins haven't spoken to one another in 15 years and Will isn't sure why that is.  There is a lost child, a lost brother, and the possible discovery of a previously unknown a child.

In a strange way, the details of the plot don’t matter.  Envy is about more than a series of events.  It is a psychological family drama involving sexual tension and competition, obsession, betrayal, and profound loss.  It is crazy and disturbing...and its enthralling.  Envy is the fourth book I’ve read by Kathryn Harrison.  Her other books include Exposure, The Kiss (a memoir), and Thicker Than Water.  When I finished Envy I went and looked at my old book journals to see what I wrote and found that I was just as captivated by Harrison’s writing then as I am now.  Her books tend to veer into  uncomfortable territory, so be warned.  It can be rough journey, but it is such a good one.

Also recommended: Exposure and The Kiss
I'm not not recommending Thicker Than Water, but to be honest I don't remember much about it, whereas these other two books I remember very clearly.