Pathiramanal is about a private financer, who lives in a hill station with his mother. His mother had become mentally challenged after she was raped by a police constable during his childhood. His mother conceived from the rape and gave birth to a baby girl. Eldho's father is avenging his wife's death by going after the police constable and unfortunately dies.
After Eldho has grown up, he reaches Pathiramanal, a place in Kuttanad, in search of the constable to take revenge. There he meets a girl. He realizes that she is the daughter of the constable. The drama is what the film is about