City Hunter: Ai to Shukumei no Magnum
English name: City Hunter: .357 Magnum
Genres: Action, Comedy, Mystery
Type: Movie, Episodes: 1
Aired: Jun 17, 1989
Studio: Sunrise
Source: Manga
Rating: PG-13 - Teens 13 or older
Synopsis:
A beautiful pianist comes to Tokyo for a charity concert, and City Hunter is there. But music isn`t his forte; he wants lessons in the language of love. Desperation becomes the word of the day as the bodies start dropping. A foreign dignitary is assassinated in cold blood. Secret agents scour the streets for a missing microchip. Diplomatic infighting swirls around the upcoming concert, and City Hunter is the only hope! 

(Source: AnimeNfo)