Kool Nahi Hot Hain Hum is about two boys and two girls whose only abition is to be very rich. The girls Sania and Maria are on holiday and their bag gets changed with Hakeem's bag who is a don. the bag has an important file. hakeem looks for the girls but can't find them.
Sania and Maria meet two boys Ajay and Vijay who woo the girls because they think they are rich but only to find out they have no money. The boys find the film and realize the value it holds and now they have an idea which is to blackmail Hakeem to fulfill their ambitions.