In San F rancisco, two police ins pectors are on the cas e when a  rogue taxi driv er, wi th the hel p of a rogue p orter,  manage s to st eal th e suitcase of an ant iques c ollecto r before ru nning d own a cop, who se dying ge sture is t o shoot th e cabbie d ead. The ins pectors discover tha t a statuette in the suit case contains h eroin. Meanwh ile, a ps ychopathic  gangster, his maligna nt mentor an d their d ipsomaniac driver hav e the job of p icking up t he othe r heroin shipm ents, hidden  in the lugg age of unsuspec ting travelers. All go es well unt il they attempt to ret rieve th e heroin stuffe d in a Ja panese doll.  A little  girl and her lovely young  mother h ave the doll, but whe n the crooks  take possessio n of it, they  find that th e heroin has m ysteriously v anished. In San Francisc o, two  police  inspectors  are on the case w hen a rogue t axi driver, w ith the help of a