An Australian woman arrives in London to search for her sister, and finds her involved with a heroin-smuggling gang that is under attack from an unknown rival who is methodically assassinating them with a shot to the head.

(1971) Hansjorg Felmy, Uschi Glas, Werner Peters, Gunther Stoll. A determined Scotland Yard inspector travels all over London gathering the evidence needed to put a big drug-smuggling gang into the slammer. There are more than enough dead bodies to provide clues, as the gang is unusually ruthless. Good color print. Scope, 35mm.—Anonymous