Binary the graphic novel is based on Christopher Hinz's novel, Liege-Killer, which won the Compton Crook Award in 1988, and has garnered a cult following.
Liege-Killer is part of a trilogy, which includes Ash Ock and The Paratwa. In Liege-Killer, human experimentation on human embryos in the near future produced a new species: the Paratwa, a single consciousness occupying telepathically linked bodies. The Paratwa are highly skilled warriors but look like normal people and are not necessarily identical twins, and can even be a pair of male and female. The books follow the activities of humans and Paratwa as these old enemies are reunited more than a century after the earth's apocalypse during which humans had thought the Paratwa race had become extinct.