An Australian woman arrives in London to search for her sister who she finds is involved with a heroin smuggling gang. The gang itself is under attack from an unknown rival, who is methodically assassinating them with a shot to the head.
Uschi Glas
as Danny Fergusson
Hansjörg Felmy
as Inspector Craig
Werner Peters
as William Baxter
Harry Riebauer
as Milton S. Farnborough
Siegfried Schürenberg
as Sir John
Günther Stoll
as Doctor Ellis
Petra Schürmann
as Susan
Friedrich Schoenfelder
as Anthony Wyman
Lyvia Bauer
as Myrna Fergusson
Peter Neusser
as Sergeant Simpson
Friedrich G. Beckhaus
as Bordellbesitzer
Gerd Frickhöffer
as Pennymaker
