A gripping crime investigation journey of Kerala Police confronted by an ex-cop Abraham Mathew Mathan aka Paappan. As he dives deeper into the case, destiny has an emotional tryst in store for him.

Venki (Prithviraj) is an entrance coaching professor by day and robs automated teller machines (ATMs) using fake debit cards by night. He has been operating out of Kochi for the past three months and the Imperial Bank of India (IBI) is the target of all these robberies. ACP Harris (Jayasurya) is in charge of the investigation. But the managing director of the bank, Nandakumar Menon (Biju Menon), is not happy with the way the investigations are proceeding as the cops have been harassing the bank’s customers. The bank authorities have ruled out a problem in their systems as the same system is used by other banks. The other banks are not yet a target. All the transactions done by the robber have been using a debit card. Nandakumar Menon decides to conduct an investigation in parallel with the cops. He summons a private Detective Alexander Felix (Narain). Felix is an unkempt young man who opted out of IPS. On the first day, he oversleeps on the train and does not disembark at Kochi. But …

Venu (Mohanlal) is a high-profile news cameraman working in Reuters. He graduated from a premier film institute but preferred to shoot news rather than the manipulated visuals for movies. He is mostly based in Delhi but has come to Kochi to appear for a case in which he is involved. He is assigned to cover a case involving a local politician where he gets to meet Renuka (Amala Paul). Renuka is the executive editor of Bharath Vision and Venu and Renuka have a story to tell of their own. A flashback tells the story about how two lovers turned into foes.

Jai Mohan (Mohanlal) leads a double life, he is a special agent of a special task force of the Indian government created to counter terrorism in India. Jai Mohan and his chief Shaheed Khadar (Sathyaraj) operate in Bengaluru under a cover setup of exporting business under the name “Deccan Exporters”. Jai falls in love with Anjali Menon (Amala Paul) and marries her, for the reason he is constantly hazed by his chief.
One day, Anjali follows Jai on suspicion of having an affair and accidentally meet each other, which he is forced to reveal that he is an undercover agent who operates as a civilian. Meanwhile, Victor Rana (Rahul Dev) a terrorist who was caught and locked after Interrogation escapes by trick. To catch Victor Rana, Shaheed asks Anjali to act as Laila, a bar dancer, Victor’s girlfriend. Anjali finally agrees and is trained as a regular in bar dancing.