Batman raises the stakes in his war on crime. With the help of Lt. Jim Gordon and District Attorney Harvey Dent, Batman sets out to dismantle the remaining criminal organizations that plague the streets. The partnership proves to be effective, but they soon find themselves prey to a reign of chaos unleashed by a rising criminal mastermind known to the terrified citizens of Gotham as the Joker.
The hilarity begins when professor Sherman Klump finds romance with fellow DNA specialist, Denise Gaines, and discovers a brilliant formula that reverses aging. But Sherman\'s thin and obnoxious alter ego, Buddy Love, wants out...and a big piece of the action. And when Buddy gets loose, things get seriously nutty.
Ryan Harrison, a violin god, superstar and sex symbol does not want to cheat on sexy Lauren Goodhue\'s husband with her. Mr. Goodhue is found murdered and Ryan suddenly finds himself being the main suspect. After being sentenced to death he manages to flee while being transferred to his execution site. Now, all the world is after him as he stumbles from one unfortunate incident to the next in order to prove himself innocent - by finding a mysterious one-eyed, one-armed, one-legged man...
Three petty thieves who the police believe to be major criminals are chased into a basement bar where they take five hostages including all the bar employees. The rest of the movie deals with the cops lurking outside the bar while the trio try to get hold of the situation inside.