Once your life is diluted to ones and zeroes on the End Man's desk, it's over. Or is it?

Afflicted with dromophobia, the fear of crossing streets, 26-year-old Raphael Lennon must live out his life within the four thoroughfares that border his Los Angeles neighborhood. Luckily, he found a fulfilling job within his space as an End Man at Norval Portals where Raphael is the best possum hunter in the company. He hunts the dead who live, people hiding under the guise of death. He doesn't want to bring these "possums" to justice but to keep them out of his firm's necrology database so their presence doesn't crash the whole system.

When the company founder assigns Raphael a fresh case, he sets aside all other work to investigate Jason Klaes, a maverick physicist with boundary-pushing theories that may have attracted unwanted and sinister attention. Raphael soon discovers messages sent by Klaes after his supposed death—threats to people who have subsequently died. As he digs deeper, he receives his own message from Klaes, a baffling command to pursue the truth.

As he unravels the mystery, he unearths the secrets of his own phobia-plagued life and the inner workings of Norval, whose corporate ambitions include a nightmarish spin-off of its product. Raphael must stop them or he'll never be free and neither will anyone else.