Frank's entire plan for payback against Howard Saint, the man who ordered the execution of his family. First, he gets Saint's business partners angry by costing them a load of money via sabotaging drug deliveries and tossing laundered money into the streets from a high-rise. Frank later sets up Saint's bodyguard and best friend, Quentin, so it appears as if Quentin's having an affair with Saint's wife — all with the help of one of Saint's low-level mooks. Quentin is eventually killed by Saint, who also murders his wife — even though she tells her husband that Quentin's gay and there is no affair. After Saint kills his wife, he calls his son and a group of his closest associates to his nightclub — where Frank picks each one of them off one-by-one, leaving Saint's son for last. (His "punishment" is particularly amusing in its own right.) After taking care of Saint's entire operation, Frank nails him in the gut with a single shot as Saint tries to flee on foot — then he shows Saint all of the evidence of his setup.
Frank:tosses pictures of Quentin kissing another man I made you kill your best friend. tosses one of Saint's wife's earrings I made you kill your wife. And now, I've killed you.
After the big reveal, Frank sends Saint to a fiery death by chaining him to a car which he then blows up, along with a large number of other cars in the same parking lot. From the air, the resultant blaze looks like a giant flaming skull.