Farhan Akhtar starring as Karthik is our self blaming office boy who is regularly abused verbally and emotionally by his landlord, boss and co- workers and every time he takes it all in on the pretext that he led to his brother's death and this is his penance. Even therapists can't help him. Driven to a corner losing his job, never being noticed by his secret crush and asked to empty his apartment he decides to commit suicide. But then rings the phone bell and the caller is none other than Karthik himself. Initially a movie which looked along the lines of the underdog taking sudden control of his life now has an added mystical element added to it. The caller helps Karthik realize his potential and transform him to a totally different person - confident, secure and easy-going. He gets to be part of the success story at his company,turns the tables on his landlord and gets his dream girl. Everything seems perfect but suddenly some unfortunate events led to Karthik facing the wrath of his caller. The first half of the movie is mostly a romance and unfortunately not one that leaves a great impression. The sudden change in Karthik also seem jumpy at times. The main element of the movie, the phone calls get shadowed by all happening around until the later half of the movie. Once everything is set in place and Karthik is back to question his unknown caller with encouragement from Shonali, Deepika Padukone and his therapist, Sefali Shah. The suspense in the second half is great and explanation for all the so mystical caller is pretty well thought out. The film overall seems to leave a message to the watchers and amaze them with the mysteries of human mind. Farhan Akhtar seems to be turning out as the jack of all trades delivery one hit after another. While his acting may not be the best it is certainly gripping, believable and entertaining. Deepika Padukone did okay but at some points her portrayal of the character does not seems to deliver the tension she is into. Overall though Karthik Calling Karthik is of better ones in Bollywood and I would recommend to anyone wishing for a story with a taste of thrill and reality.