Keigo Higashino's 'The Devotion of Suspect X' is ranked amongst the top 10 detective novels of Japan and is currently being made into a film in various languages across the world, including in Hollywood. We were the first to tell you that Ekta Kapoor had acquired the rights for the same in India and that the director of the outstanding thriller Kahaani, Sujoy Ghosh, will be directing the film. The book is an atmospheric thriller about a desperate woman craving a peaceful life, but who ends up killing her abusive ex-husband. The next-door neighbour helps hide the body and improvises a cover-up. When the body is eventually found, a determined investigator senses that something is amiss, thereby giving rise to a thrilling cat-and-mouse game. We have now exclusively learnt that the extremely cutting-edge actor Saif Ali Khan has been signed on for the main lead and that he will be seen in a completely new avatar in the film. The book involves three protagonists - two boys and a girl. We will wait to see who Sujoy will choose for the other two roles. The tough part would obviously be for him to choose actors who can match up to Saif 's calibre as an actor.