Computer whizzkid Peter Keithley, asked to transfer a betting system onto computer tape, dies shortly afterwards. An old friend of his, Jonathan Derry, finds himself in possession of the tapes and discovers that there are greedy, desperate men who will do anything to get their hands on the lucrative software. The evil, bull-faced Angelo goes too far and ends up in jail. Fourteen years later he's free, and very keen to get hold of not only the tapes, but also Jonathan Derry...