Prajapathi movie is all about Devar madom Narayanan (Mammootty) is accused to kill is father, for being cruel to his mother, at the age of 13 and serves sentence in a juvenile home. When he returns, he becomes leader of the people of Perumalpuram village. His enemies are his uncle Kunjambu Nair (Nedumudi Venu) and wife Indrani (Seema). Kunjambu Nair hated Narayanan for killing his brother. Although Kunjambu Nair and his son Giri (Siddique) tried in many ways to kill Narayanan. At one point Giri almost succeeded in killing Devar madom Narayanan. But Narayanan again didn