Telephone (1985)

Suresh is a wealthy businessman who discovers that his best friend / business partner Dinesh is extorting money, which prompts him to fire him. The disgruntled Dinesh then sets out for revenge, which involves blackmail and murder.

Genres: Thriller

Stars: Shatrughan Sinha, Marc Zuber, Parveen Babi, Prem Chopra, Deepti Naval