Answer:
The author tells the story from the point of view of a man with amnesia.
Step-by-step explanation:
According to the book, "A Resumed Identity", the narration comes from a man who seems to be hallucinating, but it is later discovered that he has amnesia and is recollecting his memories by bits.
Therefore, the point of view of "A Resumed Identity" keep the reader guessing is that the author tells the story from the point of view of a man with amnesia.