Musthaffaa decides to become a good man so he helps Sundaresan 's family and decides to live with them .
Thereafter , Musthaffaa turns berserk and kills Kaalaiya 's son .
Musthaffaa decides to become a good man so Musthaffaa helps Sundaresan 's family and decides to live with them .
Thereafter , Musthaffaa turns berserk and kills Kaalaiya 's son .