It's hard to find a book that explains what love is, due to its utterly complex nature. The One You Cannot Have is love story based on the multifaceted ground of love. Author weaves the story around a guy named Aman, who finds love the second time with Anjali, but his past with Shruti still lingers on in the depth of his heart. Aman and Shurti were inseparable once. Both saw future in each other. One unfortunate day Shruti breaks up with Aman. Shattered, he leaves the country.