About the book (from Goodreads):
One minute, silly Heather Badcock had been gabbing on to her movie idol, the glamorous Marina Gregg. The next, Heather suffered a massive seizure. It turned out to be a deadly poison. But for whom was it really intended?
Marina’s frozen expression suggested she had witnessed something horrific. While others searched for material evidence, Jane Marple conducted a very different investigation – into human nature.