All the Rage (Repairman Jack Series #4)

Can you imagine a new chemical compound, a non-addictive designer drug that heightens your assertiveness, opens the door to your primal self, giving you an edge wherever you compete? Whether on the street or the football field, in a classroom or a boardroom. Wouldn't you be tempted to try it . . . just once? What happens if it releases uncontrollable rage and makes you a killer?