Part-time secretary Louise has a romantic evening with a mysterious man and finds out he is her new boss the next day. Not only is David her boss and super sexy, he is married! David's wife Adele is beautiful and mysterious, but something is not quite right. Louise gets sucked up into the lives of both David and Adele, with grievous consequences.

**Spoilers ahead!!**

Spoiler

What the fuck ending indeed. However, I did figure it in some ways prior to the big reveals. I did listen to it on audiobook and quite enjoyed the two female narrators, who perfectly fit their respective characters. My main irritant was the slight supernatural element, which wasn't my favorite. I prefer the realism of The Girl on the Train or The Woman in Cabin 10, both of which rely on reality to shock you. Behind Her Eyes instead relied on lucid dreaming, which while interesting, seemed a bit of a cop out.