While on a fourth of July holiday, six best friends fall victim to the insidious plan of a terrorist organization when they unknowingly take a bio-active drug that transforms them into bloodthirsty cannibals.
It doesn't happen on screen but it's implied that a character severely injures their partner and leaves them for dead after being infected. Another character axes and later shoots their infected partner.
Yes at around the 48 min mark when the detective tells the victim from the beginning to calm down and he’s going to get a doctor. She says just kill me. You see her looking sick then She vomits up blood and a whole finger for those who won’t watch it at all like me my bf told me what she threw up so I could continue to understand the plot