When vampire hunter Laura Caxton is locked up in a maximum-security prison the cop-turned-con finds herself surrounded by murderers & death-row inmates with nothing to lose.. .and time to kill. Lauras always been able to protect herself but soon she learns that an even greater danger lurks in the prison. Justinia Malvern the worlds oldest vampire has taken up residence & her power grows as she feeds her way through the inmate population. She knows how to pull Caxtons strings & issues an ultimatum that Laura cant refuse. Now Laura has just 23 hours to fight her way through a gauntlet of vampires cons & killers.. .23 hours to make one last desperate attempt at protecting the world from Justinias evil.