Moonlight in Tokyo

情义我心知

Also known as Ching yi ngor sum gi, 情義我心知

Intellectually impaired he might be, Jun (Leon Lai) is only dumb but not silly. Abandoned by his family on a trip to Tokyo with only a few notes in his pocket, he thinks he has found his guardian angel when he bumps into a former classmate, Hoi (Chapman To). But Hoi is no angel at all. He is just a grifter on the run from yakuza loan sharks. When Yan (Yang Kuei-mei), the owner of an escort service, is convinced the ingenuous Jun will mark a perfect gigolo, Hoi decides to transform his pal into Tokyo's most sought-after Lothario in order to eke out a living and to pay his debts.