Muthirai

Politician Azhagar Adhiyaman's party wins in Tamil Nadu Assembly elections. His brother Azhagar Thondaiman, the senior party leader Aadhikesavan, and Azhagar Adhiyaman discuss the posts to be held. Discussions turn into gunfire, during which all three of them get shot. Azhagar Adhiyaman dies, Azhagar Thondaiman falls into a coma, and Aadhikesavan is left with an injury. The state is brought under temporary Governor's rule until their party chooses the new CM.

Sathya and his accomplice Azhagu are highly successful petty thieves. Azhagu marries Kavyanjali once for money (under the mass-marriage programme). Kavya's father tries to make money with his daughter. Azhagu realises his mistake and tries to convince Kavya. Sathya cheats a woman named Aarthi by saying he is a CBI officer and makes her fall in love with him. Sathya and Azhagu stay in an apartment opposite to where Krishna stays.

The commissioner is appointed as the investigating officer for the case, and he finds that Krishna knows some information about the firing where Azhagar Adhiyaman was killed. He traces where Krishna stays and chases him. At the same time, in the opposite apartment, Sathya, Azhagu, and Aarthi host a birthday party for Kavya for Azhagu and Kavya to get together again. Krishna enters their house to escape from the police, and all five of them start running away from the police. While the police chases them, Azhagu, Kavya, Sathya, and Aarthi try to escape. Krishna also tries to get in the car and drops his laptop in their car.

Four of them flee and seek refugee in a hideout. They take out the laptop to find that Aadhikesavan has shot Azhagar Adhiyaman and his brother, and he shoots himself. Azhagu calls up the commissioner to hand over the witness, which fails because Aadhikesavan's men come and attack them in their hideout, and Azhagu thinks that it is the commissioner's men. Later, he calls Aadhikesavan and demands a ransom in exchange for the laptop. He also checks the commissioner's credit card transaction and mobile phone calls and finds that the commissioner has been getting a lot of money illegally from Azhagar Thondaiman, and he is appointed by him.

In the climax, Sathya comes to collect money from Aadhikesavan, where the commissioner also turns up unexpectedly. Azhagu comes with Azhagar Thondaiman, who was in the hospital. Azhagar Thondaiman explains his side of the story, that he also tried to kill his brother and had worn a bulletproof jacket to avoid getting shot. Krishna was a man appointed by him to take videos of incidents happening. The commissioner kills Aadhikesavan. When Sathya and Azhagu try to escape with the money, other police officers encounter them. They shoot the commissioner and arrest Azhagar Thondaiman. In the meantime, Sathya and Azhagu escape with the money and wish the other police officers good luck with their careers.

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Muthirai is the first film produced by Vision Jeeva Studios.^{[3][4][5][6][7]}

The soundtrack was composed by Yuvan Shankar Raja, and released on 7 May 2009 at Sathyam Cinemas by director Gautham Vasudev Menon.^[8] One of the female leads, Manjari Phadnis, a Maharashtrian by birth, sang one of the songs, the first time in Tamil.^[9][10]

Pavithra Srinivasan of Rediff.com wrote, "Halfway through the film though, you begin to realize that despite a rather nice cast, comedian-turned-director Srinath seems to have lost track of whatever Hollywood screenplay he burglarised and settled down with a half-baked desi version."^[11] Malathi Rangarajan of The Hindu wrote, "For a better impact, the unravelling of the plot could have been more comprehensible and spaced out".^[12] The New Indian Express wrote, "On the whole, Muthirai is a film that promised a lot and lived some what on paper".^[13] Sify wrote, "Antony seems to have lost his magic touch as an editor. Still the film is engrossing in bits and pieces – Srinath has a winner due to his packaging and slick styling".^[14]