Prem Nazir

Raghu, a great detective with some of the toughest cases to his credit, is assigned the task of finding a dangerous outlaw who kidnaps children for ransom.

Orphan Sethumadhavan is friends with rich boy Jagadish. An invitation to Jagadish's house creates a problem when Sethumadhavan becomes a victim of suspicion.

CID officer Chandran gets murdered by a gang of smugglers. Later, CID Nazir is assigned the job of nailing the culprits.

Raja Vamana Varma dies mysteriously. Many murders follow. The government delegates anthropologist Dr Menon to investigate the deaths in and around the palace.

Kuttan, a rich man, decides to get Lallu, his granddaughter, married to Rajan, whom he met during an interview. For this, he seeks the help of her friends.