Who’s the couple?
Yvonne Carmichael, a leading geneticist, and her professor husband, Guy.
What’s their story?
Guy watches as Yvonne begins an affair with an unnamed — and untrustworthy — lover.
How good’s the big twist?
The opening scene pretty much announces that things won’t end well for Yvonne, but it’s still fascinating to see a brilliant woman destroy her life with a few impulsive decisions. In Doughty’s hands, Yvonne’s actions are both shocking and weirdly understandable. A-