Rai Bahadur Satpal Singh (Nazir Hussain) is killed cold-blooded in a remote village.
Meanwhile, driving through their estate, Rekha's car breaks down and is helped by Prem (Shashi Kapoor), with a golden hand for such machines.
During the engagement, when Rekha's Police Inspector friend Vikas shows up to wish the couple good luck for the occasion, Prem is suspiciously found missing.
The next evening, the couple go out to spend private time on a house-boat anchored in a lake on their estate.
The staff at their estate, like the cook (Jagdeep), house keeper Amba (Lalita Pawar) et al.