Midnight Son (2011)

Jacob is a young man in Los Angeles, California who lives a life of isolation by day and works as a security guard by night. This is due to a rare skin disorder developed in his youth that prevents him from being exposed to sunlight. His world opens up when he meets and falls in love with a local bartender and secret druggie, Mary, recently departing a relationship with a drug dealer. Beginning to crave blood, as everyday food no longer cures his hunger, Jacob suspects he may be a vampire, though his physician, Dr. Barnes, diagnoses him to be anemic. His condition worsens and he goes from consuming animal blood to depending on human blood for medical sustenance, a necessity which brings out his violent tendencies on people in the city.

Jacob, longing to be normal, hides his deteriorating condition from Mary, and their romantic relationship suffers because of it. Searching for blood at a hospital, Jacob comes in contact with an immoral hospital physician named Marcus, who alongside his younger, misguided brother, Russell, helps Jacob by milking a patient for blood in exchange for money, a grim method Jacob is against. Shortly, Detective Ginslegh narrows his focus on Jacob during a homicide investigation.