Sad Cypress - Agatha Christie

A beautiful young woman, Eleanor Carlisle, stood before a jury accused of the murder of her nemesis, Mary Gerrard.

Her position was critical, for she alone had the motive and opportunity to commit the crime.

One person in the courtroom who assumed Elinor was innocent until proven otherwise was the only barrier separating her from the gallows.

That person was Hercule Poirot.