Eight people escape zombie-infested New York. They have only one thing in common: the addict gene. The same genetic quirk that makes alcoholics and addicts susceptible to booze and drugs gives them a mysterious ability to evade the undead. But that's not enough to unite them. They're an unlikely crew: A Botoxed Upper East Sider; a drug dealer; a resentful daughter of addicts; a recovering AA guy; a Japanese ex-dope fiend; an addicted Ivy Leaguer; and a Mexican immigrant.