Unni due to financial problems becomes the renowned smuggler Valayar Paramasivam in the Kerala-Tamil Nadu border check post Walayar.

Moosa, a private detective, faces many challenges while solving various cases. His only rival is his own brother-in-law, Peethambaran, who is a police officer.

Padmanabhan reunites with his son after many years of separation, but his happiness is short-lived when he realises that his son is mentally ill.

Madhavan is a petty thief who is accused of stealing the idol of the village goddess. However, he soon escapes police custody and tries to find the real culprit.