Best buddies Acerola and Laranjinha, about to turn 18, discover things about their missing fathers' pasts which will shatter their solid friendship, in the middle of a war between rival drug gangs from Rio's favelas.

African-American Philadelphia police detective Virgil Tibbs is arrested on suspicion of murder by Bill Gillespie, the racist police chief of tiny Sparta, Mississippi. After Tibbs proves not only his own innocence but that of another man, he joins forces with Gillespie to track down the real killer. Their investigation takes them through every social level of the town, with Tibbs making enemies as well as unlikely friends as he hunts for the truth.