The X1 pandemic ravaged the world. Billions were infected, 30 million died. It was not an act of nature.
X1 was
Daniel, a social worker in his 30s, raised in London by a single mother, never knew even the identity of his father. A case involving benefit fraud draws Daniel to the flat he abandoned when his mother died, & to the claimant, Amos, whose haunting stories suggest that he may be Daniel's father.