Robert Lumsden 
Sojourn [EPUB ebook] 

What counts as paranoia when people are evidently out to get you? A man summoned to an Asian island resort is drawn more completely with each conversation, each incident, into a collision course with the woman behind the call. Two fundamentally vigilant people fashion a conclusion for themselves neither would have chosen and neither seems able to avoid. The setting is Penang, circa 1990, before the beginning of the southwest monsoon season.