Ellen Wheeler, a rich widow, is recovering from a nervous breakdown. One day, while staring out the window, she witnesses a murder. But does anybody believe her?

An international assassin known as ‘The Jackal’ is employed by disgruntled French generals to kill President Charles de Gaulle, with a dedicated gendarme on the assassin’s trail.

Life for Richard Forbush, brilliant biology student and conceited philanderer, is one long round of eat, drink and be merry. But his decision to accept a six-month research post in…