"The Collector" by John R.Fowles

The Collector is the story of the abduction and imprisonment of Miranda Grey by Frederick Clegg, told first from his point of view, and then from hers by means of a diary she has kept, with a return in the last few pages to Clegg's narration of her illness and death.
Clegg's section begins with his recalling how he used to watch Miranda entering and leaving her house, across the street from the town hall in which he worked. He describes keeping an "observation diary" about her, whom he thinks of as "a rarity," and his mention of meetings of the "Bug Section" confirms that he is an amateur lepidopterist. On the first page, then, Clegg reveals himself to possess the mind-set of a collector, one whose attitude leads him to regard Miranda as he would a beautiful butterfly, as an object from which he may derive pleasurable control, even if "collecting" her will deprive her of freedom and life.
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