The story follows John Cupertino, a man seemingly under medical care, and his quest to find the truth behind the memory of him killing his wife.

    However, the phenomenon dealt with aren't the unidentified flying objects themselves but the witnesses' reports. Dr Vallee is a professional analyst specializing in mathematics & astronomy. This study isn't to prove but to scientifically define & analyze documented evidence. Starting with a sharp look at historical record which includes poking the spokes of Ezekiel's Wheel, he goes up to the present with an analytical breakdown. Many of the reports are reproduced at length & relate such extraordinary incidents as the UFO that made off with a heifer, four UFO's disconcerting an air-filter plant's employees & a wild night in Kelly-Hopkinsville, KY. The author is the 1st to denounce hoaxes, fraud & glory-seekers. In his notes on documentation & research, he is adamant about thorough investigation. This is most valuable as a manual of analytical processes in this unexplored area. The author writes clearly enough to intrigue laypersons with his breakdowns, categories & classifications. The phenomenon is a compelling curiosity in itself, particularly with the staggering amount of material presented here.--Kirkus (edited)