A young Power plant owner (Dharmendra) and his research team, led by his friend
and uncle, a brilliant scientist, become the first in the world to unlock the
secrets of Solar Energy. A discovery that has made them the toast of teh entire
world and the envy of greedy men. Young Kailash has everything in the world, but
for his true love, Asha (Raakhee). Unknown to him she is already in love with is
friend, Jeevan (Shatrughan Sinha). He seeks Jeevans help in his affairs of heart
and Jeevan is much happy to assist. Arent Jeevan and Asha in love? What of
Kailashs friendship? How far will one man go to steal anothers hard work and
wealth? The title says it all, "Black Mail (1973);!
