"Matroruvan" (The Other Man) will have Khan alone as a character in the film, with the script based on his dreams turning into reality.
"This is a psychology (based) story. The hero gets dreams which turn into reality. He gets a big dream and the climax of the movie is whether that one also comes alive," director of the film, Majo Mathew, said.
Khan, known for his negative characters in many languages including Tamil, termed his role as "challenging."
Besides Khan, a dog and an elephant are the other 'live characters', the statement said adding the film will release in May in Tamil, Telugu and Malayalam.