The Sentinel by Jeffrey Konvitz

A novel that takes you to the very boundaries of belief- and one shattering step beyond.
THE
SENTINEL
A beautiful young model. The old brownstone apartment she simply had to have. The grotesque blind priest who watched down on her day and night from an upper-storey window. The pair of perverted creatures who wanted her to join their circle. The mad little old man who gave her tea and sympathy. The cool, calculating, supremely rational lover who first mocked her fears.
And the secret you will never be able to forget, even if you try...

Condition: Acceptable