Mika (Inoue) is a cop with a liking for her Magnum, who loses her partner while capturing the criminal Nezu (Yamato). He then escapes, and she gets a new partner (Tayama), who is more concerned with fashion than the down and dirty world of criminal detection, and also hates cockroaches to the extent of unloading a full clip on one in the police station. Mika rolls her eyes a lot at this, but in Mika’s past lurks a dark secret when she shot first and asked questions later.