Series of bucket-killing murders happening in the city. Failure to resolve by police, a team of CBI Officers under CBI officer Sethurama Iyer take up the investigation to resolve the never experienced mystery.

• Swargachitra
• Mammootty
• Jagathy Sreekumar
• Mukesh
• Saikumar
• Renji Panicker
• Soubin Shahir
• Dileesh Pothan
• Asha Sarath