The play is set in an unnamed House of Detention in New York City, the inmates of which are predominantly black or Latino. One day, a new prisoner is brought in: Clark Davis, a young, middle-class white man accused of raping a young girl. His fellow prisoners immediately turn on him — child molesters are considered the lowest form of prison life — except for Juan, one of the institution's older prisoners, who treats him with dignity. While Davis insists he doesn't remember raping the girl, he admits that he has molested several other children.
It is eventually revealed that the police's case against Davis is weak, and he will likely be released. This puts Juan in a difficult position: on one hand, he feels a grudging pity for Davis, and "snitching" on another prisoner, even one as despised as Davis, could get him killed; on the other, there is no doubt in his mind that Davis will "scar up some more little girls' minds" if released. Before he can decide what to do, however, Davis is attacked and killed by the other prisoners.
The play also revolves around other features of prison life, such as the day-to-day attempts to accumulate privileges from the guards and "rap sessions" in which prisoners joke, flirt, and threaten each other.