Dharma Pathini (1986)
Prem Kumar (Karthik) is an honest police officer who comes in conflict with a dangerous thug named DJ Radharavi. He falls in love with Vidhya (Jeevitha) who joins as Sub-Inspector of Police in his station. They get married. Situations take a turn, when Vidhya's brother-in-law is framed in a murder case. The rest of the story is how Prem Kumar and Vidhya tackle the case and reveal the true murderers.