The story is about a room in Sector 15, Chandigarh, where four boys—Bhinda, Jeeta, Kala, and Lovely Pandit—come to live. Among them, Kala and Pandit are the first ones to stay in the room. All of them start referring to this room in Sector 15 as the "15 Aala Kamra." There is a cupboard in the room, and a sacred red thread is tied around its handle. Pandit convinces the others that the spirits of a boy and a girl live inside the cupboard. He warns everyone to stay away from it and, under no circumstances, to open it. Throughout the entire film, none of them ever opens the cupboard. They remain scared of it and believe that something supernatural is inside. While living in the 15 Aala Kamra, Pandit, Bhinda, Jeeta, and Kala also experience their own love affairs. Along with the fear surrounding the cupboard, their lives are filled with happiness, sadness, friendship, romance, and plenty of fun. The boys enjoy themselves in the same way young men from villages often do when they come to the city to live in a PG. Their everyday lives are filled with jokes, mischief, friendship, relationships, small fights, emotional moments, and unforgettable memories. The story of "15 Aala Kamra" is based on the experiences, relationships, fun, and emotional journey of these four boys as they live together in their PG room—while the mysterious cupboard remains a constant source of fear and curiosity throughout the film.