Joe, a Vietnam War serviceman who witnessed a girl raped, beaten, and blown to bits, develops a unique serial killer/rapist identity on returning to the states - his big thrill is blowing folks up with sticks of dynamite (which he purchases casually over the counter at the local explosives retail shop). Initially, his targets for obliteration are social deviants, sex-crazed juveniles, lesbians, and other undesirable misfits of society. Eventually, he broadens his scope and anyone is fair game, even an innocent housewife and her nine year old son.