Debutant Rahul Sadasivan is directing a film based on the red rain that lashed in Kerala several years ago. The film is a science fiction and actor Naren essays the role of a young scientist investigating the reason behind the red rain. The film titled Red Rain is being produced by Sachin Sadasivan. The film has used night vision cameras to shoot the scenes. Rahul who completed his studies from London Film Academy has done the script for the film too.