Mockingbird
A sci-fi novel by Walter Tevis
From the Back Cover:
Mockingbird is a powerful novel of
a future world where humans are dying. Those that
survive spend their days in a narcotic bliss or
choose a quick suicide rather than slow extinction.
Humanity's salvation rests with an android who has
no desire to live, and a man and a woman who must
discover love, hope and dreams of a world reborn.