I is a unique love story. Lingesan ('Chiyaan' Vikram) is a champion bodybuilder. He adores top model Diya (Amy Jackson) but feels, he can never make contact with her. Then one day, fate brings them together.
Diya has acted and continues to act in many ad films with John (Upen Patel) who is also a top model like her. John wants to get physical with Diya but she is not interested. John seeks revenge for the rebuff by ensuring that she doesn't work in any ad film with him. There is one important ad film for which John and Diya have been signed. Before John can replace Diya, she has him replaced. She seeks the client's permission to let Lingesan work in the ad film opposite her. The unit leaves for China to shoot the ad film. As Lingesan is too intimidated by Diya, he is just not able to perform in front of the camera. Exasperated, ad filmmaker Sushil (Mohan Kapur) asks Diya to feign romance with Lingesan to make him feel at ease. As the ad film is a matter of life and death for her, Diya obliges and tells Lingesan that she has fallen in love with him. This puts Lingesan so much at ease that he puts all his inhibitions behind him and acts superbly. The ad film becomes a rage and Lingesan and Diya consequently become the hottest pair in the ad world.