Khanjar

Prakash (Navin Nischol), a librarian, lives with his daughter. His friend and private detective Captain Usman (Suresh Oberoi) visits him and gives him a diary along with a dagger (khanjar) He also receives a call from a stranger inquiring about Usman's diary and the dagger. Meanwhile, a smart girl named Preeti (Reena Roy) starts to flirt and get closer to him to know about the diary and dagger. After a few days, his brother-in-law Ramesh (Shekhar Kapur), married to his younger sister