Police department is your friend) is a 2020 Indian Tamil language crime thriller film written and directed by RDM.

The film director and the actor had previously collaborated for a comedy caper titled Adhi Maedhavigal in 2014, which was shelved before release.

[4] Navein Darshan of The New Indian Express said, "KUN is a reminder that content is king and presenting a hard-hitting story is still possible sans any big names.

[5] Sify said, "the title Kaavalthurai Ungal Nanban might sound as if the film is yet another fictional plot to glorify the cops.

But the film's director RDM has registered the vicious side of the police force with his maiden venture, which is hard-hitting".