You Are Being Watched by Diptendu Chakraborty is a short, fast-paced crime thriller centered on the murder of Piyusha, a pregnant woman who is found dead in her apartment. As the investigation unfolds, suspicion falls on everyone connected to her. Arjun, Piyusha’s boyfriend and a notorious Casanova, has a clear motive; Rohini, Arjun’s mother, strongly opposed their relationship; and Avnish, Arjun’s childhood friend, has his own complicated history and reasons for seeking revenge. As the story progresses, hidden motives, personal grudges, greed, lust, envy, anger, pride, and other aspects of the seven deadly sins emerge among the characters. With multiple suspects and unexpected twists, the novel presents a compact whodunit in which everyone appears capable of murder and the real culprit remains difficult to identify until the end.