The player starts out as Private Eye John Mc Affrey. Together with his assistant Jane he has his own detective agency. Because he is completely broke, one day he takes a job where he has to secretly exchange way-bills. The job is finished very quickly, but now his problems are really starting to grow. The cheated person, you see, is a Don of the Italian Mafia...

John has now a simple choice to make: Die or agree to carry out more illegal missions. John decides to remain among the living; his first job is to steal a virus called "Cold Zero" from a Bio-Research lab. Was this a good decision? You will soon see...