Story: Detective Naani opens with a regular day at Gulmohar Complex where the spunky and independent 75-year-old Naani (Ava Mukherjee) is on her way back home from her daily morning walk. Suddenly, her eye catches the face of a little girl peeping nervously from a third floor window of a flat belonging to a newly arrived childless couple. The girl moves away quickly and Naani is intrigued by this little ... ...detailed story of Detective Naani