Plot Summary:Six couples arrive at out-of-term Chaucer College for a quiz weekend with a five thousand pound prize. One of the contestants, womanizing know-all Ethan Croft, is murdered. Another, Robyn Strong, an old flame of Ethan's, is disappointed that he failed to recognize her. Ethan was a brilliant linguist but was sacked from the college years earlier after an affair with a student who is now married to another quizzer. Meanwhile, Eve, Robyn's quiz partner, is the next victim, after she has been heard arguing with Ethan. Passion, however, is not the motive, the killer being one whose guilty secret was exposed by Ethan's language skills over a past business transaction - with at least two suspects in the frame.