'68 Bad Sign OS (2015)

In December of 1968, a violent, random serial killer launched a spree of terror on the San Francisco area. On February 13th...the living dead rose and turned the entire world into a slaughterhouse. Now, hidden away in a derelict warehouse deep in the butchertown district, a human monster continues his bloody work, taunting the few remaining cops and hunting humans without fear in a city of the damned.