Vinoth begins establishing the story in Thunivu from the very first frame since he has a somewhat complicated one to tell. A gang plans a bank heist to take a sizable sum of money that is being kept illegally at a bank with the assistance of a police officer. On the big day, everything goes according to plan until the Dark Devil enters and ruins it. The film keeps the "why" of it a mystery the entire time, and this is where Vinoth excels. Thunivu doesn't make you impatient despite the fact that we are kept in the dark because there is action in every frame and hence no time for it.

Right from the first frame of Thunivu, Vinoth starts setting up the story because he has a bit of a complex one to tell. A gang, with the help of a police officer, plots a bank heist to steal a huge sum of money, which is illegally stored in a bank. Everything goes as per plan on the big day until the Dark Devil’s entry, who hijacks the plan. The ‘why’ of it is kept as suspense throughout the film, and this is where Vinoth triumphs. Though we are kept in the dark, Thunivu doesn’t make you impatient because there’s no time for it as there’s something happening in every frame.

The fact that Mankatha, Ajith's 2011 hit, features an anti-hero who is blatantly unethical, is one of the main factors contributing to its success. Finally, a Tamil film director emerged who felt no need to expound on the villainy of his lead character. He would have been the bad guy in a star vehicle. But the moral compass of director H Vinoth is set to the 'correct' side of things. As a result, Dark Devil, the protagonist of Thunivu, only has light shades of grey at most. It's problematic because the movie's opening sequences are strikingly similar to Ajith's Mankatha double-crossing gimmick. What initially seemed to be a wicked plot slowly begins to resemble a generic tale about yet another Robinhood. Vinoth begins establishing the story in Thunivu from the very first frame since he has a somewhat complicated one to tell. A gang plans a bank heist to take a sizable sum of money that is being kept illegally at a bank with the assistance of a police officer. On the big day, everything goes according to plan until the Dark Devil enters and ruins it. The film keeps the "why" of it a mystery the entire time, and this is where Vinoth excels. Thunivu doesn't make you impatient despite the fact that we are kept in the dark because there is action in every frame and hence no time for it.