Days of Darkness (2007 American film)

Days of Darkness is a 2007 American horror film written and directed by Jake Kennedy. Survivors of a zombie apocalypse, including a young couple played by Travis Brorsen and Roshelle Pattison, seek shelter in an abandoned military complex while they attempt to figure out what has caused the outbreak.

The alien parasites are based on a reallife parasitic castrator named Sacculina that preys upon crabs. The location, a decommissioned NORAD microwave station in Topanga, California, was purchased by a friend of the director. Once they had the location, the filmmakers came up with a story the producers desired a zombie film.Days of Darkness premiered at the 2007 Visionfest. Lionsgate released it directtovideo in the US on January 8, 2008. ........

Source: Wikipedia