Naan Sigappu Manithan Full Story Explained (2014)

Indhiran has narcolepsy, a disorder that makes him fall asleep whenever he feels strong emotions. Since childhood, this has ruined his chances at a normal life. He cannot get a job. He cannot have sex without passing out. But he can still hear everything while asleep. Indhiran makes a bucket list of things he wants to achieve alone. One day, he ventures out by himself and almost gets hit by a car. He falls asleep in the middle of the road. A passerby pretends he is dead and collects money from strangers for his burial. Meera, a kind woman, gives five thousand rupees. Later, Meera sees Indhiran alive at a mall and faints from shock. After clearing the misunderstanding, they start dating. Meera kisses him, fulfilling one of his dreams. They fall deeply in love. Meera's father opposes the marriage because Indhiran cannot stay awake during sex. Meera and Indhiran have sex in a swimming pool, and Indhiran stays awake. Meera becomes pregnant. One night, Meera drives on an under-construction bridge. Another car hits them. The shock makes Indhiran fall asleep. Thugs pull Meera out and rape her brutally. Indhiran hears everything but cannot move. He sheds a tear of helplessness. Meera falls into a coma, and her baby is aborted. Indhiran vows revenge. He cannot testify because he was asleep. He starts investigating on his own. He suspects Karthik, a rich man whose marriage proposal Meera rejected. But Karthik is innocent. Indhiran learns that sudden loud noises make him sleep. He buys a portable audio player and uses it at full volume to stay awake. He trains with a meditation teacher to control his reactions. He stands between two trains to test himself. He gains control. With help from a sympathetic police officer, Indhiran finds a lead. He remembers one thug's name: Sekhar. He also remembers the thug's ringtone. He spots a red car at a petrol bunk. The driver says the car was with a mechanic named Sekhar on the night of the crime. Indhiran goes to the workshop. Sekhar tries to run. A chase leads to a building under construction. Karuna, Indhiran's best friend, arrives and kills Sekhar. Karuna then injures himself and lies that Sekhar escaped. Indhiran does not believe him. He investigates further. He learns that Karuna's wife Kavitha had an affair with Aravind, a wealthy friend. Karuna knew about the affair and used it to get money from Aravind. Karuna wanted to move to the US. Indhiran exposed the truth to Aravind. In a fight, Aravind accidentally killed Kavitha. Karuna then killed Aravind. Karuna blamed Indhiran for Kavitha's death. He planned the attack on Meera as revenge. Indhiran confronts Karuna and the remaining thugs at the construction site. The thugs remove Indhiran's audio player. He falls asleep. They beat him. But one thug breaks a water pump, and water splashes on Indhiran. He wakes up. He fights and kills all the thugs. He kills Karuna by kicking him onto a steel bar. With all his wishes fulfilled, Indhiran makes a new wish: that Meera recovers. The final scene shows Indhiran hugging Meera in the hospital. She is tearful and seems to be recovering.