Patrick Steele is an accountant with training for various physical skills. He has made himself a self-styled Robin Hood available to right the wrongs of society using his skills as an accountant and a man of violence.
The Gurentai, a sub-group of the Japanese Yakuza, employs him to prevent the incursion of the Mafia into England â€" specifically the northeast. The Mafia have blackmailed, or so it seems, a member of the local government planning committee to give contracts to a building firm under their control. That is James Thompson, but his wife Janice is hiding a secret!
The Gurentai set Steele up with a Swiss bank account with sufficient remuneration to purchase an empty factory unit and set it up as a training facility and garage for himself. He also is to follow Aikido training to hone his skills in hand-to-hand combat and to adopt the spiritual attitudes of the Gurentai.
The action begins near the Thompson household and at a building site operated by the Italian sponsored building firm. He indulges in some property sabotage and minor wounding of one of the hierarchy of the building firm. This does not have the desired effect however, and in an effort to discover the prime movers heads after the source of the funds, to The Marche, a region on Italy’s east coast.