The makers have kept this secret well guarded. Arunoday Singh plays the nemesis of the invisible man - 'Mr.X' in the movie starring Emraan Hashmi and Amyra Dastur. It is Arunoday, who plots to kill Emraan and it is his foiled assassination attempt on him that gives birth to the character of 'Mr.X'. Apparently, Emraan - who plays the role of a cop in the film before he transforms into an invisible vigilante - is betrayed by Arunoday, who plays a devious, menacing, cold-blooded villain in the masala 3D entertainer.

Though the makers are tight-lipped about Arunoday's exact role in the film, it can be said that he plays a cop in the film too. We are sure this revelation adds a lot of curiosity to the story of Mr X. It will be interesting to see how Mr X takes down this towering villain in the film with his powers of invisibility. Produced by Vishesh Films and presented by Fox Star Studios, Mr X releases this Friday. The film releases in 3D and 2D formats.

Mahesh Bhatt confirms the story saying, "Arunoday is a menacing, evil villain in 'Mr.X'. He is a very strong counterpoint to 'Mr.X' that people will see when the film opens this Friday."

Watch 'Mr.X' Trailer