Rasigar Mandram movie is about Rasigar Manram (Fan clubs). Kathir (Ganesh) and Pandian (Gokul Krishna), are in local fans associations becomes enemies as their favourite heroes fight with each other in screen. Then started rivalry between the two fan clubs. Meanwhile, Bharathi (Uma), teacher of a neighbourhood school tries to unite Kathir and Pandian. Whether she succeeds or not forms the rest of the story.