Kaakki Sattai

Kaakki Sattai is a 1985 Tamillanguage Indian feature film directed by Rajasekhar, starring Kamal Haasan, Ambika, Madhavi, Sathyaraj, Rajeev and Thengai Srinivasan. The film was panned by critics but was a blockbuster hit at the box office. The film was remade in Hindi as Guru.

Angered by the rejection, Murali turns into a local rowdy. He causes trouble in his district and comes to the attention of a notorious smuggler and murderer, Vicky Sathyaraj and his partner Anand Rajeev. After initial conflict between the two, Vicky recruits rowdy Murali into his gang. Murali becomes his most trusted member. He grows intimate with a girl, Anita Madhavi, who is looking for personal revenge against Anand.But soon Vickys activities time and again, are foiled by the police and he finds out that they have a mole in his gang. Uma spots the changed Murali with Anita and becomes furious and breaks up with him. Then Murali reveals the truth to her. He was not rejected by the police but was recruited by a senior officer to bring down Vicky and Anands gang. He became a rowdy to get into the gang and is acting as a mole to bring the gang down. They patch things up but Vicky finds out the truth too. In the climax, Anita kills Anand. Vicky kidnaps Uma after killing Anita and when police arrive to arrest him and blackmails Murali to help him escape. After initially helping his escape, Murali rescues Uma and Vicky is killed in the blast. ........

Source: Wikipedia