Nanma

Nanma is a 2007 Indian Malayalam-language action drama film, directed by Sarathchandran Wayanad, starring Kalabhavan Mani and Rahman.
Plot.
For a living, Muthu extracts and disposes corpses from rivers. Unknown to Muthu, his son becomes a henchman for a money lender as he wants his father to have a respectable job.
Reception.
"The Times of India" said the director, "Sharath Chandra Wynad has lived up to the expectations of Malayalam viewers’ story, screenplay and direction."