Wild Things: Foursome (2010) on Netflix

Plot summary

In Blue Bay, a South Florida port town, Carson Wheetly is the twenty-year-old son of Ted Wheetly, a millionaire NASCAR racer. Carson believes his father killed his mother a year earlier to take her money. At a party he spends a night with his girlfriend Rachel Thomas, her school friend Brandi Cox and a local woman, Linda Dobson. The three then accuse him of rape, and he is arrested. Linda takes a cash settlement and leaves town; Rachel drops her charge; Brandi does not. When Ted dies during a race, Detective Frank Walker investigates the questionable death, and Ted's lawyer George Stuben tells the family at the will reading that Carson cannot inherit until he turns thirty or marries.