Incest theme in the tradition of Bhimsingh’s
Pasamalar (1961). Siruvayi (Radhika) loves
her brother Mayandidevan (Vijayakumar), and
agrees to marry Sangilikuruppu (Napoleon)
when her brother approves of the marriage.
However Sangilikuruppu’s sister Jayakkodi
commits suicide, and her widowed husband
uses this to alienate Mayandidevan from
Siruvayi. A generation later, the feud between
brother and sister continues when
Sangilikuruppu’s daughter is forbidden from
marrying Mayandidevan’s son Chinnamuthu.
When the two young people marry anyway,
Sangilikuruppu tries to kill Mayandidevan, but
Siruvayi takes the blow and dies, sacrificing
herself for her brother. The brother, rather than
the husband, claims her dead body.