In New York, Alex Hitchen (Will Smith) is a kind of sentimental advisor, teaching each client how to date the woman of his dream. His present case is helping the clumsy Albert (Kevin James) to date the wealthy and powerful Allegra Cole (Amber Valletta). Meanwhile, Hitch has a crush on the gossip columnist Sara (Eva Mendes), who was assigned to write about Allegra. When the best girlfriend of Sara has a love disillusion with a man that Sara thinks that is a client of Hitch, she plots a revenge against Hitch and the misunderstanding leads the two couples to a conflictive situation.
Two jilted lovers spend fifteen years of marriage together, only to find that they might no longer love each other. In this time they have two children and go through the various (dramatic and comical) events that take place in an average marriage.
The story begins as “Don” Vito Corleone, the head of a New York Mafia “family”, oversees his daughter’s wedding. His beloved son Michael has just come home from the war, but does not intend to become part of his father’s business. Through Michael’s life the nature of the family business becomes clear. The business of the family is just like the head of the family, kind and benevolent to those who give respect, but given to ruthless violence whenever anything stands against the good of the family. Don Vito lives his life in the way of the old country, but times are changing and some don’t want to follow the old ways and look out for community and “family”. An up and coming rival of the Corleone family wants to start selling drugs in New York, and needs the Don’s influence to further his plan. The clash of the Don’s fading old world values and the new ways will demand a terrible price, especially from Michael, all for the sake of the family.