Punyachon Kon Krua (1999)

CherrAem, a Dramatic Arts student, wants to enter a script-writing competition to win the prize of a trip to New York. She decides to write a script about being a maid. In order to gain knowledge of the subject, she takes a job as a maid in a big house, disguised as Amika. As she takes notes and observes all members, her peculiar behavior arouses the interest of the owner's nephew, Tam. He becomes suspicious and observes all her actions, while she evades him, leading to many comedic incidents. Meanwhile, their mutual attraction leads to love.