Sub-inspector Chitra Basu suspects murder in a bride's death, but senior officers insist it's just a case of suicide.
Chitra is suspended while probing the case, but another bride's death in the same manner raises new doubts.
A special team is formed to catch the serial killer, and Chitra is brought back to join the investigation.
Chitra crosses paths with Chirayu at a wedding. She soon suspects similar murders are happening in other religions.
As Chitra and her husband are attacked, the murderer manages to escape before being caught.
The police link Chirayu to the murders, but there's no evidence. Their search leads to an old woman instead.
In the final showdown, Chitra sets a trap for the real killer, risking her sister's life in the process.