Since childhood, Matthew kept a dark secret: he's possessed by a demon. Now grown, serving in the United States Marine Corps, he's learned to tame the demon through self-mutilation. That cure soon ends as two recruits, who are members of the occult, cast a spell on him to manifest Matthew's worst fears. As his life slips away, the demon fully overcomes him and Matthew goes on a killing spree.

A veteran neurosurgeon returns home to find navigating the health care system confusing and frustrating. He is torn between his duty to follow protocols and his sense of compassion for his patients.

A mother living in a trailer park tries to protect her loved ones from a threat that has escaped from a secret military base, while mercenaries try to contain it.