香港開埠以來，一直有殭屍出沒。城市隱藏著一個捉殭屍的秘密組織—食環署特別行動組，簡稱VCD。半夜掃街的清道夫其實是殭屍獵人，巨大的垃圾桶裡藏著剛收伏的殭屍，旁人避而遠之的垃圾房…正正就是他們秘密基地！

Vampire has been haunting in Hong Kong for centuries. Hiding in this city, there is an official special action unit coping with the vampire Vampire Cleanup Department (VCD). The street cleaners in midnight are the vampire hunters. Giant garbage bins contain the captured vampire. The ordinary garbage station is their secret headquarter!