To begin with, this was yet another "Movies 4 Men" screening hampered by the usual garbled sound problems! It is also an example of a maligned Vincent Price film (Leonard Maltin says he "walks through it in a daze"!) which is actually not too bad. That said, the actor was not well served by "Euro-Cult" (this is a Spanish-German production, despite the British involvement of the writer-producer and director), as can also be gleaned from his sole Mario Bava collaboration DR. GOLDFOOT AND THE GIRL BOMBS (1966)!
Price and co-star Martha Hyer are a couple engaged in a magic act (called Manderville, so that he is later mockingly dubbed "Mandrake"!) who are involved in the trafficking of women for the purposes of prostitution (they purposefully choose lonely girls to make them disappear both on stage and in real life but, of course, they are bound to slip sometime...because otherwise there would be no film!). Considering the subject matter and Towers' resume', this is remarkably chaste; in any case, the very first victim we see here (being transported in a coffin!) is none other than Maria Rohm aka Mrs. Towers. Her boyfriend sets on her trail, which leads him to Tangier, where he seeks the help of criminal pathologist George Nader (the hero inevitably played by an ageing Hollywood presence). Hindering their progress is local photographer Herbert Fux, while the proper Police investigation is carried out by Wolfgang Kieling (who had just been a villain, served with a memorable death scene, in Alfred Hitchcock's TORN CURTAIN {1966}).
Typically, the identity of the organization's head is a mystery to all; hence, the ultimate revelation proves quite a surprise...and, though it then transpires that Price was not as villainous as had been inferred, he still gets a melodramatic demise. By the way, I was surprised to notice the Maltese name of Charles Camilleri as the film's composer; actually, I had already heard his (only other film) work on Jess Franco's THE CASTLE OF FU MANCHU (1968) and, interestingly enough, he died a couple of years back right in my home-town!