Fact1: village become secret agent like idol, Fact2: Dhamayanthi 's father is friend of Unni 's father, Fact3: Unnikrishnan gets selected as trainee in private detective agency called, Fact4: Arundhathi and Oomen Koshy is working as gardener in house, Fact5: whoever does best be selected to agency
Output: Unnikrishan Jayaram is a BA graduate in a village who wants to become a secret agent like his idol, Prem Nazir who had acted in various movies as a detective. His parentsOduvil Unnikrishnan and K.P.A.C. Lalitha and his girlfriend DhamayanthiChippy support him but Unnikrishan still cannot find a job. Dhamayanthis fatherBabu Namboothiri, who is a friend of Unnis father arranges a trainer Rishikeshan NairJanardanan to train Unni. Rishikeshan Nair who told everyone that he was a trainer in a police training academy was actually a cook in the academy canteen. After a few days Rishikeshan Nair absconds with some valuables from Unnis house. Unnikrishnan later gets selected as a trainee in a private detective agency called Secret Files. The BossNarendra Prasad assigns Unni a task of investigating about ArundhathiRohini, the daughter of a businessman AnanthapathmanabhanSukumaran as an assignment to evaluate him. While investigating with his friend and sidekickIndrans he faces two rivals, Prem ShankarManian Pillai Raju who poses as a gentleman who pretends to love Arundhathi, and Oomen KoshyJagathy Sreekumar who is a working as a gardener in her house. They are from the same detective agency investigating the same case as the boss tells that whoever does best will be selected to the agency. All three try to investigate in their own ways. Unnikrishnan poses as a salesman of Peter and Peter, befriends Ananthapadmanabhan. He manages to make a bad impression about Prem Shankar in front of Ananthapadmanabhan. Oomen tries to flirt with the cook ClaraKalpana. From Ananthan, Unni learns that Arundhathi is having a deadly disease from childhood and she has to take the medicines regularly. Thats the reason for she still being unmarried. After Arundhathis birthday party, she catches Oommen and make him confess that he is in fact a private detective. Oomen tells her about others and she reveals to the three of them that she is in fact Revathi, Anathapadmanabhans niece. The actual Arundhathi is in USA doing her studies. Dejected the trio decides to quit the investigation. But Prem Shankar who has started to develop feelings towards Revathi, asks the help of the other two to find out what is the disease of Revathi. They find that she is actually healthy and the medicines she is taking from childhood is just vitamin tablets. They kidnap the family doctor of Ananthan and he tells them that Ananthan wants Revathi unmarried as the all the properties are of Ananthans late brother who is the father of Revathi. So he fabricated a story about her disease to make her believe that she cannot live happily. They inform Revathi about this and she is shocked to hear about her uncles actual intentions. But Ananthan gets to know about these happenings kidnaps Dhamayanthi who had come to the city with her father as she was worried about Unni. Ananthan makes an offer to exchange Dhamayanthi for bond papers signed by Revathi that all the properties will be of Ananthan. Revathi signs the papers and Dhamayanthi is rescued but Unni burns the papers using a matchstick trick taught by Rishikeshan Nair. A fight occurs where all of Ananthans men are defeated and Revathi asks them to spare Ananthan as she was bought up by him. In the end all three are selected into the Secret files and the boss asks them to take a case in somewhere north of India. All three tells they need a vacation as they had found love. The movie ends with the three agreeing to take Unnis sidekick as their assistant.