Within the game) is a 1975 Indian Hindi-language black comedy thriller film directed by Ravi Tandon.

It was an adaption of the French novel Good Children Don't Kill written by Louis Thomas.

[1] The film music was composed by R. D. Burman and the lyrics written by Gulshan Bawra.

The film stars Rishi Kapoor, Neetu Singh and Rakesh Roshan as college students, who play a prank and get involved with a notorious criminal.

One day, they spot a stingy Seth (a wealthy man) and send him a fake typewritten extortion note, hoping to relieve him of his money.

After trying to find out some information, they learn that Sherie acted as a middleman between a dreaded criminal named Black Cobra and the people who paid him.

After learning that Black Cobra is an extortionist and the dead man was also on his payroll, blocks suddenly start falling into places.

Ajay and Nisha deduce that the Seth thought the note was from Black Cobra and confronted him.

Black Cobra thought that Vikram and Sherie were extorting people in his name, behind his back, so he killed them.

Just he is about to pull the trigger, the stranger makes an entry and after some fight the Black Cobra is put behind bars.

To a bewildered Ajay and Nisha, the stranger reveals that he is Charlie, an undercover police officer working on the murder cases.