Ajit Talwar (Kay Kay Menon) is a business tycoon. The movie starts with an interview of Ajit Talwar in a News Channel. Ajit Talwar has a broad business unit. Ajit Talwar is married to Naina Talwar (Rukshar) but still Ajit Talwar is a womanizer who has an affair with his secretary played by Spanta Patel (Kishwer Merchant). Ajit Talwar has a friend Kapoor (Rahul Vohra) whose wife Raveena (Aditi Govitrikar) runs a TV channel. Kapoor invites Ajit to the final episode of Aao Guess Karein, a TV Reality show aired on Kapoor's TV channel. The finalist of the show is the protagonist Bharat Bhushan (Vinay Pathak), who wins ₹ 25 Lakh and a chance to journey in a luxurious Cruise. The Executive Producer of the show Ranjini (Minissha Lamba) asks Bharat Bhushan, how would he utilise the prize money. Bhushan says by producing a music album.
Bhushan is an Income Tax Officer and has a friend M. T. Shekharan (Suresh Menon) who is also an Income Tax Officer. Shekharan calls on Bhushan for an Income Tax Raid. But Bhushan refuses saying that he is leaving for a holiday on a luxurious Cruise. Shekharan follows Ajit Talwar to the cruise ship and employs various disguises to collect evidence on Ajit Talwar. Ajit and Bhushan get lost in an island. Bhushan makes his way to the Cruise with all preparations and thus the hilarious journey begins.
