Detective Virgil Tibbs is caught up in the racial tension of the US South when he is arrested after the murder of a prominent businessman. Tibbs was simply waiting for his next train at the station in Sparta, Mississippi and the confusion is soon resolved but when local police chief Gillespie learns that Tibbs is the Philadelphia PD's number one homicide expert, he reluctantly asks for his assistance. The murdered man, Mr. Colbert, had come to Sparta from the North to build a new factory and his wife and business associates immediately point the finger at Endicott, the most powerful man in the county and the one who had the most to lose if a major new employer comes to the area. Tibbs' life is clearly in danger but he perseveres in a highly charged and racially explosive environment until the killer is found.

On a family trip in the African desert, a research scientist unintentionally travels off course and is brutally murdered by an arms dealer. His girlfriend is put to the ultimate survival test as she attempts to evade the killers and protect his teenage daughter.

A police Lieutenant goes about his daily tasks of investigating homicides, but is more interested in pursuing his vices. He has accumulated a massive debt betting on baseball, and he keeps doubling to try to recover. His bookies are beginning to get agitated. The Lieutenant does copious amounts of drugs, cavorts with prostitutes, and uses his status to take advantage of teenage girls. While investigating a nun's rape, he begins to reflect on his lifestyle.

A young mother living in Marfa, Texas struggles to raise her child after suffering from a brutal sexual assault.