The main character, Eleanor is accused of the murder of Mary Gerrard. It seems that she was the only person with both motive and opportunity. The story is recounted as she sits in the dock at court, from her point of view.
Following this, Hercule Poirot investigates the case, and his final point of view is given through the assessments and inquiries of various witnesses.
Initially, the case is presented as a clear-cut case. Eleanor's motive was jealousy and she had a great opportunity. Eleanor herself seemed to believe that she was guilty. However, its a Poirot novel- there has to be something more to the story than what's being told.
I loved that Christie set the story in a court room and told it through flashbacks. I also really enjoyed that witnesses were called in, and that their answers allowed the readers to guess at Poirot's analysis. However, I'm not quite satisfied that this novel should fall under the "Poirot" series.
Although Poirot solved the case, he wasn't present for much of the novel, and that affected how much I enjoyed the book. Once I got past that though, I realized that like most of Christie's novels, "Sad Cypress" was a great one.