Trailer for Bacterium.
When a handful of friends stumble upon the abandoned building, they come face to face with a biological weapons experiment gone catastrophically wrong. They also confront a maniacal scientist who predicts life on Earth will end in 48 hours if the accelerated bacterial mutation cannot be halted. As the virulent, flesh-hungry contagion spreads from person to person -- rendering each host into a pile of infectious ooze -- it begins to multiply and increase in size...