It stars Rishi Kapoor, Tariq, Kaajal Kiran, and Amjad Khan, with Zeenat Aman in a special appearance.
The story begins with a wealthy man selling his entire estate in Africa, converting it to diamonds.
On the way, he suffers a fatal heart attack in the washroom, whilst in the throes of which, he requests a co-passenger to deliver the belt with diamonds to his son, Rajesh, who works in Ashoka Hotel, Delhi, as a singer-dancer-entertainer.
After threatening Kajal, Sanjay, who is alive, shoots Saudagar dead before the police save them.
Popular songs include "Bachna Ae Haseeno", sung by Kumar and picturized on Kapoor, whose title inspired a film of the same name produced by Yash Raj Films in 2008, starring his son Ranbir Kapoor, and "Kya Hua Tera Vada", which won Rafi both the Filmfare Award and the National Film Award for the Best Male Playback Singer.
This film was released at a time when the Swedish pop group ABBA were at the peak of their popularity all over the world, including in India.