Life Blood (film)

Life Blood is a supernatural horror thriller film released in 2009.

Instructed to devour evil, and thereby gain eternal life, the story portrays their firsthours of survival as these reborn creatures. Brooke starts to go on a killing spree, to prove herself loyal to the Creator, while Rhea tries to put a stop to the chaos that Brooke started after she kills a sheriff, his deputies, a married couple on vacation, and a hitchhiker.The film ends with Rhea killing Brooke by impaling her with a stop sign, when Brooke refused to devour evil souls but to devour good souls. After telling her story to Lizzy, Rhea tries to start her life all over again, this time, as a vampire, not knowing that Brooke is still alive, presumably plotting her revenge. ........

Source: Wikipedia