“Yatchan” is a 2015 Tamil action comedy film directed by Vishnuvardhan. It stars Arya, Kreshna, Swati Reddy, and Deepa Sannidhi. The story follows two characters, Chinna and Karthik, who accidentally swap places and get involved in unexpected situations.
Chinna, a hooligan and a big fan of actor Ajith Kumar, is asked to harm Shwetha by a man named Thangamani. Meanwhile, Karthik dreams of becoming an actor, but his father opposes his ambition. Chinna and Karthik switch lives by mistake, leading to Chinna acting in a movie and Karthik doing Chinna’s job.
Things get complicated when Shwetha realizes that a politician named Vetri killed his brother. Vetri kidnaps Shwetha, Karthik, and Chinna. However, they manage to defeat Vetri, who turns out to be Selvam, his brother’s murderer. They bury Selvam, and the movie ends with Chinna and Karthik returning to their normal lives.