Great title! Really enjoyed the two perspectives and the shifting of time throughout the novel.  The character of Martin is very well developed, and honestly quite unnerving.  Reminds me of 'The Dinner' and "We have to talk about Kevin' in terms of Martin's character.  Wish the character of Ben could have been explored more but the fact that we only see him through Martin's (and Lucy's) eyes, only serves to highlight Martin's disconnect from reality or Ben himself.  Would be great for book clubs to unpack, lot's to discuss.

At a dinner party, two couples discover there’s a lot they don’t know about each other. Ben and Martin have been friends since they were children, or maybe Martin was just in total awe of his wealthy, perfect friend and Ben liked  the adoration. Whatever the reason, Ben’s wife, Serena, jokingly sneers at her husband’s friend for the man’s adoration of her husband. Lucy loves her husband, content to take a back seat to Ben, who seems to always be first in her husband’s affections. If you’re thinking this sounds like the perfct set-up for a disaster, you’re right. The day after the dinner party celebrating Ben’s birthday, Martin is in police custody, and Lucy will be forced to admit she never really knew her husband or his friends, at all. Taking place primarily over the course of one night, this is a story that builds slowly and inexorably to a fever pitch of tension