Infection by Scott Sigler

Perry Daswey is 6-foot-5, 265 pounds of angry ex-linebacker. He knows all too well that if he doesn't control his quick temper, people get hurt. Through constant focus, he has locked his violent past away in the deep dungeons of his mind. The infection changes everything. Strange, microscopic parasites tap into Perry's bloodstream like tiny little vampires. They start as bright orange blisters, but soon take the shape of triangular growths just beneath his skin. The "Triangles," as Perry calls them, try to control their host by manipulating hormone levels and flooding his body with neurotransmitters - imbalances of which cause paranoia, schizophrenia and excessive aggression. As Perry begins a desperate battle to cut the Triangles out of his body before it's too late, his self-control dissolves into raging, murderous madness. Infection will come out as a print book in 2008 with the new title Infested.