Ma, Kathy, Louis, and Tomato are four youngsters who are fascinated by loose living. They often treat themselves with trips to secluded islands and let themselves go. But, Kathy's past catches up to her little group. She used to live in Japan, where she refused the love of a gangster's son. The son in turn killed himself. His father, now a powerful leader and still angry about his son's death, vows revenge against Kathy. But Louis and Tomato are not ones to just stand by and watch. They head to Japan to even the score!