In fact out of the blue, the police labels him a Maoist and starts questioning (read harassing) his family and associates!
Yami Gautam, a sincere and fearless crime reporter decides to investigate the matter and uncovers the whole saga, only to realise that the activist is alive but actually lost in the complex system of personal vendettas of politicians, police and Maoists.
The film plot is examplary but linear without establishing the 'why' behind questionable actions.
The supporting characters are sketchily written. Dishy looking Rahul Khanna and intense looking Neil Bhoopalam stay absolutely unutilized and don't bring any extra edge to the story.
Yami Gautam has acted well. Pankaj Kapur has proved that however small a role is and however inconsequential the character is written, he can shine above it all. He is the only thing about the movie that has depth.
At 124 minutes, Lost is an average film, but still it is a nice watch.
