You are going to attempt a single handed robbery to steal the most famous diamond in the world, "The Star of India", whilst it is on loan to the top security museum "The Hexagon."
Notes
The game inlay has a rather more laconic plot outline: "You have been imprisoned in the museum and have to try to escape. There are many odd objects to deal with."
An unofficial conversion of the ZX Spectrum version is available for Atari 400/800; ported by devwebcl.