Jonas Upton is the son of a wealthy New York family. Devastated by the death of his wife Valerie to cancer after only five years of marriage, he moves to the small town of Clearwater, Wisconsin where he poses as Jonas Cabot.

His apartment building, Charing Cross, is a renovated old tire company plant. He immediately is plagued by a voice during the night repeating 'S.A.M." and 'S.A.M. murdered me." He investigates the history of murders in the old building and finds only one that has remained unsolved: Jim Henderson, brother of Clearwater police detective Robert Henderson, who continues...