Named after two Roman gods, Castor and Pollux is a documentary that contrasts the lives of two middle-aged brothers: Adrian Rawlins, a soft-spoken gay bohemian and champion of counter-culture values, and Gus, a totally anarchic, right-wing biker from the Finks Motorcycle Club. Both are leaders in their alternative movements. The film shows, however, that they are quite similar, particularly in their desire to question or rebel against conventional living.