A good book to read. I have been reading all of Chetan Bhagat books and this is quite different from his previous plots. There is a bit of thrill in it. In this Keshav gets entangled in the murder case of his ex-gf Zara( who he is not over yet) when he visits her room on the very night of her murder. Then Keshav and his best friend Saurabh decide to help the police in solving the case( even though they are just IIT graduates who teach in a coaching centre). It is a interesting book with good plot, and nicely executed