The Devil gives a ouija-like board game to two couples, which lets them experience their sexual fantasies directly. One of the couples becomes addictively ensnared, and it's up to the other couple to free them before they become minions of the Devil.

Damon is a down-on-his-luck commercial photographer scratching for every mundane, boring job he can get just to survive. He discovers that a supernatural power has been gifted to him. When he touches someone, he can see their most intimate sexual fantasy. A whole new world of erotic adventure has opened up to him and his normally stuffy photo sessions turn into orgies of eroticism as his subjects let loose their innermost fantasies.

The Herlihys are a working class family from Chicago whose three children take wildly divergent paths: Brian joins the Marines right out of High School and goes to Vietnam, Michael becomes involved in the civil rights movement and after campaigning for Bobby Kennedy and Eugene McCarthy becomes involved in radical politics, and Katie gets pregnant, moves to San Francisco and joins a hippie commune. Meanwhile, the Taylors are an African-American family living in the deep South. When Willie Taylor, a minister and civil rights organizer, is shot to death, his son Emmet moves to the city and eventually joins the Black Panthers, serving as a bodyguard for Fred Hampton.