This movie was remade in Hindi as Policegiri starring Sanjay Dutt.
The movie story deals with Aarusaamy a Deputy Commissioner of Police of Tirunelveli who efficiently brings the city under control. Aarusaamy arrives at Tirunelveli after being in exile for some years after being wrongly accused of bribery by corrupt politicians. In an early scene in the film, he eats idli with beer and performs some drunken antics, which had a negative impact on the viewing public. At the outset, he pretends to be a corrupt cop by accepting bribes from the very influential Annachi. Later Saamy starts to rebel against him and the rest is about how he succeeds in overcoming the corrupt politicians. Aarusaamy’s father who wanted to become a cop was unable to become due to corruption and takes care of agriculture for his living. But he wanted to make his son a cop. Vikram too passes the IPS examinations in merit, but was asked for bribe. His father mortgages his properties and makes him get the desired job. Being an honest cop, Aarusaamy is honoured with transfers all over Tamil Nadu due to political pressure. Finally, in Trichy, he is accused of bribery by a politician and he gets suspended. It takes him six months to prove himself and he is posted in Tirunelveli now. In Tirunelveli, he adapts a new policy of adjusting with the local goons so that he can serve the people in an effective way. Perumal Pichai, is an underworld don who has the total control of Southern Tamil Nadu, both in politics as well as rowdyism but he is less known in the media. He bribes Aarusaamy so that he will not disturb his business because both Perumal Pichai and Aarusaamy belongs to his caste. Saamy also accepts it but requests him to make some changes which he in turn accepts. As a result, the city is under the control of Law and Order. He is always accompanied by “Punctuality” Paramasivam, who is an inspector. Saamy falls in love with a college-going Brahmin girl, Bhuvana and they get engaged. Bhuvana’s father, is a straightforward government officer who never got bribe and leads a noble life. Saamy and Bhuvana meet each other when Saamy goes in search of a home for rent to Bhuvana’s home. Bhuvana misinterprets Saamy and Paramasivam as thieves and locks them in a room.