Musthaffaa is a 1996 Indian Tamil-language crime drama film directed by R. Aravindraj and written by K. Prasanna.

When politicians need help, they notify Periyavar, and Musthaffaa, in turn, solves the problem with his sidekick Chellappa.

Being from a middle-class orthodox Brahmin family, Sundaresan lives with his sick wife Bhagyalakshmi, his daughter Lalitha, and his son Ramkumar.

When Musthaffaa learns of their problem, he pressures Sundaresan to sign some contracts without examining them in exchange for bribes, but they still refuse.

During Lalitha's wedding, Musthaffaa is arrested by the police, but as a transformed person, he accepts the sentence.

K. Prasanna had written Musthaffaa as a serial in the weekly magazine Ananda Vikatan and had also staged it as a play.

Impressed by the story, the producer P. G. Shrikanth decided to make into a film, with Prasanna retained as screenwriter.

[7] The Hindu wrote, "Napoleon emerges as a character actor of class while essaying a difficult role of a Muslim ruffian turning a protector of a middle class Hindu family, which still believes in old values", adding that the title character "attains great proportions thanks to the dialogue and screenplay of Prasanna".