Night Cage, Volumes 1 and 2

Vampires take over a women's prison in this sexy, scary graphic novel. When a newly made vampire is sentenced to an escape-proof underground prison, she stealthily begins to spread the evil contagion. Before long, every guard and every prisoner has been converted--except for four convicts forgotten in solitary confinement ten levels down at the very bottom of the jailhouse. To survive, the humans must fight their way up, level by level, through an army of bloodthirsty creatures. The odds are stacked against them, because their adversaries--including gang leaders, ax murderers and serial killers--were plenty vicious even before joining the ranks of the undead.