A team of four expert policemen go through extreme trials and tribulations to find the killer of a young woman.
A school kid commits suicide after a humiliating incident at school. All hell breaks loose as his brute businessman dad gets obsessed with finishing off all responsible for the same.
Final year mechanical engineering students, Romario, Riyas, Yoodas, and Athmaram think their lives are miserable since there is not one single girl in their class. Much to their joy, a girl called Riya joins their class and soon becomes friends with the boys. Termed as 'mechrani' of the college, all the boys from the mechanical department begin to flirt with her, leading to comical situations.
