Plot
On the run from his creditors, small time thief S.S. Kumar stumbles upon a private invitation card addressed to Raja Bahadur Singh for a gathering on the island of Sir John Locksley. Kumar steals the invitation card after witnessing the Raja get shot. Kumar takes the Raja to a hospital and disguises himself as the Raja's son, Bahadur Singh Jr., to gain entry to the exclusive event. When he arrives, Kumar finds that the other invitees are also notorious criminals and thieves, including a mute and disabled man named Colonel Columbus, an acrobat named Countess Sylvia Rasmussen, a follower of all world religions named Dr. Dubari, and a womanizer named K.P.W. Iyengar (also known as Romeo). His disguise does not fool anyone, especially his former sweetheart and fiancée, Sheila Enders, who now works as a nurse for Sir John. Although Kumar's cover is blown, Sir John permits him to stay. Sheila informs everyone that Sir John is dying from cancer. The reason John has invited the expert thieves is to find a successor to the highly valuable Shalimar ruby, which is worth 135 crores of rupees. He feels that the person who will be able to steal the gem will be its most worthy successor. The gem is located in a highly secure, alarmed room within his palace, guarded by armed men and surrounded by mines. The challenge has high stakes: whoever fails to steal the gem will be killed by the security system. Colonel Columbus is the first one to die while trying to steal the Shalimar. Next, Countess Rasmussen tries to steal the gem but is also killed in the process. Dr. Dubari also supposedly dies while trying to steal the Shalimar. Romeo withdraws from the competition but is killed by Sir John. It is then that Sir John reveals his true motive. He had faked his illness and staged the entire game in order to kill those expert thieves and remove all potential competitors of the Shalimar. Kumar and Sheila succeed in stealing the Shalimar and, after an intense chase involving all of Sir John's guards, they manage to escape from the island. In the meantime, Dr. Dubari, who had actually faked his death, instigates the local tribe to revolt against Sir John and ultimately kills him. It is then revealed that Kumar is not a thief but a CBI officer who was on a special mission to retrieve the stolen gem. The story concludes with Kumar and Sheila getting married. ==Release==