The story revolves around the lives of three' persons named as Shaji from different places in Kerala. They are Shaji George from Kochi, Shaji Usman from Kozhikode and Shaji Sukumaran from Thiruvananthapuram. Shaji Usman is a contract killer who accepts risky operations for the sake of supporting his family. His strange modus operandi is to stab people in their buttocks. Once, he gets a quotation through Adv. Lawrence, to attack Dominic, a popular party leader at Kochi.
At the same time, the film shows other two Shaji Sukumaran and Shaji George. Shaji George alias Udaippu Shaji is a conman in Cochin, who is Dominic's brother. Shaji Sukumaran is a cab driver, who on the way to Cochin with four young people. He notices that one of them, Neenu Thomas is seen spending the entire journey alone behind the car, with a doomed face. It doesn't take long for Shaji Sukumaran to understand that she is in trouble. Shaji Usman arrives at Cochin, stabs Dominic and leaves before Shaji Sukumaran passes by and spots the injured Dominic. He immediately takes him to the hospital. Later, Shaji Usman calls his informer and then removes his sim card and throws it off a bridge to destroy any possible evidence. It happens when Shaji George and his friend Kuntheesan are drinking beneath the bridge and the sim card falls right into Kuntheesan's glass. He puts it into his phone before Shaji George gets a call about Dominic's incident. They rush to the hospital but Dominic who hates Shaji due to his lazy attitude, asks him to stay away. Meanwhile, Kuntheesan gets a call from someone through the new sim card. When the caller asks for Shaji (Shaji Usman), the phone is handed over to Shaji George on the account of their same name. The caller says that a reward of 5 lakhs would be given the next day and Shaji George who is drunk, says okay.
The next day, as he is back to his senses, goes in search of the reward before finding out that the person who announced it is the one behind Dominic's attack. As they trace the person, it happens to be Dominic's right-hand man, Sakhavu Gopakumar alias GK. After leaving the reward in a dustbin as per Shaji George's directions, GK drives away while he gets a call from Shaji Usman. Only then does he understand the whole mix up. As the two go to the hospital, Shaji Usman calls in the number and Kuntheesan attends it. As Shaji Usman says he wants to hand over a quotation, Kuntheesan who thinks he too can get money as earlier, decides to repeat the incident. But he gets caught by Shaji Usman. After a big chase, Kuntheesan gets caught and tied up by Shaji Usman who wants his money back.
Meanwhile, Shaji Sukumaran is approached by Neenu who gives him a phone number. This number belongs to Shaji George and it is revealed that both of them were in love with each other. A flashback shows a love blossoms between Neenu and her neighbour Shaji. Neenu's father, who is clearly not interested in this relation, approaches Dominic who assures him to keep Shaji away from her at any cost. Dominic hatches a cruel plan to send him to Nagercoil so that Neenu's father can marry her off to a suitable alliance. Later, he realises Dominic's plan through Kuntheesan and Dominic's wife Jancy. He tries to stop the marriage but fails. This saddens Shaji.
Back to present, Neenu calls Shaji George to tell him how bad her life has been after her marriage. Her husband Jerome is a ruthless brat with friend circles with numerous unhealthy relationships. He tried to rape Neenu multiple times, along with his friend Aby but she escapes. Shaji George is angered at Jerome and his friends and beats them up. But he is also beaten and when Shaji Sukumaran comes to stop them, he also gets hit too. Shaji Sukumaran feels sorry for Shaji George and agrees to help him save Neenu. Meanwhile, Shaji Usman calls Shaji George and the phone is attended by Shaji Sukumaran, leading to hilarious conversations.
Jerome and his team leave for the seaport in a different cab the next day. Shaji George and Shaji Sukumaran leave for the seaport but gets stuck in the traffic jam. Meanwhile, Shaji Usman who is instructed by Lawrence to pack his things for leaving, also enters the same road. Jerome's vehicle also enters, in which Aby's wife Diana starts an argument which disturbs the driver and ultimately causes the vehicle to crash onto a set of shops and create panic. Shaji Usman who sees this, drives his car at full speed towards the crashed vehicle before stopping it, and heroically gets out. It follows with a fight where Shaji Usman beats Jerome and Aby black and blue, while Neenu manages to escape, with Diana's help and she gets into Shaji Usman's car. Shaji George arrives at the seaport and is saddened to see the cruise leaving. Later, all the three Shajis arrive at Lawrence's hotel room. Finally, Neenu and Shaji George reunites and Lawrence ensures to take care of all legal issues. Shaji Usman's money is given to him. Neenu and Shaji George rides away happily and Shaji Sukumaran, after one more hilarious phone conversation with Shaji Usman, happily drives back home.
Before leaving home, Shaji Usman pulls away his sim card and throws it down a bridge yet again. The sim card is found by two men who are drinking beneath the bridge. One of them inserts it in a mobile phone, and gets a call from someone asking for "Shaji". Upon hearing this, the other guy who is also named as Shaji, is astonished and answers the call, while the credits start appearing.
The film score is composed by Jakes Bejoy while the three songs featured in the film are composed by Emil Mohammed with lyrics are written by Santhosh Varma and Munna Shoukath.[5]
