Plot and even some scenery and dialogue blatantly copied from "Not Just Another Affair" (1982, Victoria Principal and Gil Gerard). There's much too much of Chan's sickly romancing and really lame-brained "humour" in this one. Judicious use of the fast forward button is advised, to jump past this drivel to the good-to-fantastic fight scenes, especially the climactic fight in the drug factory, where Chan and co face off against the ghastly-white (junkie ?) villain's henchman.