Enredo

A Senatorial candidate falls for a hotel maid, thinking she is a socialite, when he sees her trying on a wealthy woman's dress.

Marisa Ventura is a single mother born and bred in the boroughs of New York City, who works as a maid in a first-class Manhattan hotel. By a twist of fate and mistaken identity, Marisa meets Christopher Marshall, a handsome heir to a political dynasty, who believes that she is a guest at the hotel. Fate steps in and throws the unlikely pair together for one night. When Marisa's true identity is revealed, the two find that they are worlds apart, even though the distance separating them is just a subway ride between Manhattan and the Bronx.—Anonymous

Marisa Ventura (Jennifer Lopez) is a single mother trying to make ends meet with her young son Ty (Tyler Posey) by working as a maid for the classy Beresford Hotel in the heart of Manhattan. When not in school, Ty spends time among Marisa's fellow hotel workers who think she is capable of being promoted to management.

While Marisa and fellow maid Stephanie Kehoe (Marissa Matrone) are cleaning the room of socialite Caroline Lane (Natasha Richardson), Stephanie convinces Marisa to test the look of the Dolce & Gabbana coat. Caroline had previously asked for it to be returned to the store, and Stephanie argues that it "technically" doesn't belong to anyone at the moment. Elsewhere in the hotel, Ty befriends hotel guest and senatorial candidate Christopher Marshall (Ralph Fiennes), whom Ty learns has an interest in Richard Nixon, the subject of his school presentation. Ty wants to go with Chris to walk his dog and the pair go to Caroline's room to ask Marisa for permission. Chris meets Marisa, who is wearing the designer coat, and is instantly smitten with her. Of course, he assumes that she is Caroline Lane. The trio spend some time together in the park. Though Marisa and Chris are attracted to each other, she is terrified that management will find out about the ruse and makes it a point to avoid him afterwards.

Chris asks the hotel's head butler Lionel Bloch (Bob Hoskins) to invite "Caroline Lane" to lunch, but he is confused when the real Caroline shows up instead of Marisa. Ironically, Marisa was present when she received the invitation and even offered Caroline some advice on what to wear for their "lunch a deux". However, when the real Caroline shows up, Chris asks his assistant Jerry Siegal (Stanley Tucci) to find "the other Caroline Lane" promising that he will attend an important dinner and wishes her to go with him. Jerry asks Lionel to find her. Lionel, who has figured out that Marisa is the woman Chris has been looking for, tells her to go to the dinner and end the affair swiftly if she wants to keep her possible future in hotel management. Stephanie and the hotel staff assist her in preparing for the evening by styling her hair and loaning her an expensive dress and spectacular necklace.

However, Marisa is unable to end the affair, and she spends the night in Chris' hotel room. The next morning, Marisa is spotted by the real Caroline Lane and her friend Rachel Hoffberg (Amy Sedaris) leaving Chris' room. Caroline blurts out the truth to the hotel management and Marisa is fired directly before Chris in Lane's hotel suite. Both Marisa and Chris spend some time apart with him still thinking about her and Marisa hounded by the press and her disapproving mother Veronica (Priscilla Lopez).

Some time later, Marisa has obtained another job as a maid at another hotel. Chris is giving a press conference in the same hotel and Ty attends it and asks Chris whether people should be forgiven if they make mistakes referencing former President Richard Nixon. Ty leads him to the staff room where Marisa is having her break. Chris and Marisa are reunited and the film ends with images of publications showing that Chris has been elected, he and Marisa are still together after one year, Marisa has started her own hospitality business, and Marisa's maid friends have been promoted to management.