Karthick and Prabhu created magic together on celluloid through Agni Natchatram. Both of them star sons were top lights in the industry long ago. So it must have been tempting to pair to conjure up the spirit of the past. This time around it is not action or high-octane exchanges, but humor that binds the duo together. The two actors, though looking over the hill, try manfully to salvage the movie. But the effort shows and the magic fails to…