Switzerland

1995, the Swiss Alps. Patricia Highsmith, the queen of the thriller, now ageing and ailing, hides away in her study, surrounded by her collection of books and antique weaponry, finding solace in her seclusion, her cats and her cigarettes.

A polished young man turns up, sent by her New York publisher to persuade her to write one final instalment of her best-selling series featuring the master manipulator, Tom Ripley. But as day breaks over the mountains, it becomes clear that the charming stranger is set on a far more sinister mission.