Jason White is leading a solitary life as an art restorer and small time forger when an old friend from London's East End asks him to attend a strange ritual undertaken by his boss, head of a Japanese crime syndicate. Jason is commissioned to take on an unusual task of archaeological detection and track down a missing mask, an item deemed to have powerful mystical significance and possessing strange magical properties. Rival gangsters uncover his mission and are determined to stop him by any means. Jason must call on his old criminal family connections to help him and what follows is an all out war between East and West on the streets of London.