When Punyakodi, a rich haughty man who is also an anti-labour, kills a union leader, one of his staff members, Latha, witnesses the murder. She exposes his crime with the help of Dharmadurai.
| Actor | Role |
|---|---|
 Sivaji GanesanDharmaraja / Thirumalai / Chandramohan | Dharmaraja / Thirumalai / Chandramohan |
 Manjula VijayakumarPrema | Prema |
 M. N. NambiarPunyakodi | Punyakodi |
 NageshThalapathy / C.I.D. Sivanandam | Thalapathy / C.I.D. Sivanandam |
 K. VijayanMuthumanickam / D.G.P. Palanivel | Muthumanickam / D.G.P. Palanivel |
 SenthamaraiPolice Inspector | Police Inspector |
 Kallapart NatarajanMesthiri Ramu | Mesthiri Ramu |
 Veera RaghavanDr. Dharmalingam | Dr. Dharmalingam |
| GGokulnathAdvocate Kutralingam | Advocate Kutralingam |
 JayasudhaLatha | Latha |
 SukumariParvathi | Parvathi |
 S. N. LakshmiNot listed | Not listed |
| AAalamSelf - Dancer | Self - Dancer |
| PPremanandNot listed | Not listed |