A Nineteen year old boy is pitifully torn between two girls - an intelligent, beautiful courtesan, Nila and his college sweetheart, Mili. He helplessly finds how his libidinous desire makes him slave to his impulses and he surrenders to sex-addictions, going to brothels, making love to anonymous girls whom he forgets immediately, because he thinks forgetting a girl is easier than remembering them.

'Unreal Boy' is a psychological, erotic romance which is unique in that it sheds light on mental health issues that are not often discussed openly, such as, urolagnia, trichophilia, voyeurism.

The plot follows the complicated relationship between a nineteen-year-old student named Amitakkhar (Ami) and two girls - named Nila, an intelligent and beautiful courtesan, and Mili, his college-sweetheart.

The story centers on Ami, who has been suffering from sex-addiction which is followed by occasional delusion from his childhood, and he is pitifully torn between his love for both girls and the regrets of his inability to share all his secrets-and-sins with someone.

As the story progresses, readers are left to wonder whether Mili, Nila, Ratna (another courtesan and a torturous brothel madam in the story who tries to kill Nila), seductive Munna, and a mysterious woman aunt Sushila, are real-life characters or born out of Ami's delusion and manic sex-addiction that he has been nurturing since adolescence.

The book explores the themes of love, betrayal, sins, mental illness, and self-discovery and and as the story progresses, secrets, lies, and a dark past unfold, leading to a tale that navigates themes of morality, power, and identity-crisis.