Ash Lynx is raised by an infamous gangster, Dino Golzine. When Ash grows up, he has his own gang and he must stop Dino from catching hold of the Banana Fish, a mysterious drug that causes insanity.

* Based on an action shoujo manga by Yoshida Akimi. 1973, Vietnam - an American soldier goes mad and guns down his buddies. Since then, the only words he has uttered are "Banana Fish"... Nowadays, in New York City, police investigate a series of puzzling suicides and a dying man gives a charismatic young gang leader named Ash Lynx a vial of a mysterious substance.