Ashton Kutcher plays a care-free, anti-relationship slob who can't even hold a job where his own father is the boss. Diaz's character is a serious, hard-working woman who likes to have life go exactly to plan. She basically makes plans to make plans. One of the great things actually is that there is plenty of character development and viewers should be able to relate to the personality and actions of one character if not the other.
Back to the story, Joy (Diaz) sees her fiancee Mason off in the morning and says that they need to meet later to set their wedding date. He whines that she's planning to make a plan again and leaves for work. We learn Joy is a trader and after work she has a surprise party set up for Mason at his home. As people hide, Mason arrives and breaks up with her (while making comments about great sex with the guests listening as they hide) Joy goes drinking afterward and decides with her friend Tipper that they will use the tickets she bought Mason to go to Vegas for some fun.
Jack (Kutcher) is a sexaholic with a thing for seeing his friend Kelly in skimpy costumes like the sexy girl scout costume she wears at the beginning of the film. Jack is a furniture maker who works for his father who fires him because he can never finish anything he starts. The two compete in a basketball match against each other with Jack's job at stake, his father wins. His friend Hater later recommends a trip to Vegas.
The four of them meet by mistake upon arrival in Vegas when they are placed in the same hotel suite by mistake. They fix the mistake by getting two separate suites of the highest quality. Jack also manages to convince the hotel clerk to give them some VIP passes. As Joy and Tipper are dropped off onto the Vegas strip, Jack begs Joy to have one drink. Joy claims she and Tipper are about to plan their "assault" on the strip. Reminding her of her now ex-fiancee, Jack replies that she's planning to make a plan. Joy stops in her tracks and agrees to have one drink.
This is where the fun begins. I'd LOVE to tell more of the story but I really recommend you see it yourself.
4/5 Novas.