Ravana Prabhu is the sequel of the movie 'Devasuram'. In this movie Mohanlal comes back in a double role, i.e of the wise, old Mangallaserry Neelakandan and his son Karthikeyan. In character, Karthikeyan is very much similar to his father- in negative aspects especially his drinking stints. But he doesn't have any taste for music and dance like his father Neelakandan.

Although Neelakandan has changed for the better in his old age, the villain Nepolian from 'Devasuram' still holds a grudge against his old enemy. He is looking for a chance to take revenge and he succeeds. When Bama (Revathy), Neelakandan's wife become seriously ill, Nepolian even shunts her out from the specialty hospital he owns. Ultimately Bama dies. Karthikeyan, the smuggler and callous son do not even turn up to do her last rites.

Janaki (Vasundara Das) is the daughter of Nepolian working as a doctor in her father's hospital. She has a soft corner for Karthikeyan. But Kartikeyan doesn't have any inkling about it.

The movie has got all the ingredients for a typical masala film.. sentiments, romance, action and songs to impress any viewer. The songs have been picturised well. Mohanlal as usual is in his element although one misses the down to earth, humourous roles he used to excel in. There was need for characters like Manoj K. Jayan and Jagathy in the film and Vasundara Das of the 'Shakalaka' fame, fail to impress as a Malayalee girl. 

Overall the film can be rated as average.