 What is wrong with the citizens of Puerto Pacifico?
The series of events leading up to Pembroke's present occupation had commenced on a dismal, overcast evening in the South Pacific a year earlier. Standing on the forward deck, Pembroke was one of the first to perceive the peculiar odor and to spot the immense gray hulk wallowing in the murky distance. "You're not casual enough, for one thing," said Pembroke, deciding to play along with her for the moment. "Puerto Pacifico," she told him. None, to the best of his knowledge, was called Puerto Pacifico. "This is Puerto Pacifico." No passengers," said Pembroke. You just don't belong here, in this particular place," said Pembroke thoughtfully.
 The citizens of Puerto Pacifico are androids, not humans.
 The citizens of Puerto Pacifico are aliens, not humans.  The citizens of Puerto Pacifico are newly-awakened AI beings, trying to blend in with humanity.  The citizens of Puerto Pacifico don't realize they are dead.  The citizens of Puerto Pacifico are androids, not humans.