This has got quite a field of recognisable talent, but the story is a bit thin. "Frank McNally" (Trevor Howard) is a ruthless drug dealer who makes a bit of a mockery of the efforts of Interpol to track him down. It's only when he kills the sister of US agent "Sturgis" (Victor Mature) that he finds a foe worthy of him. This fellow is much more determined, and quickly alights on the mule of the operation "Gina" (Anita Ekberg) trailing her all around Europe before finally honing in on his prey as “McNally” plots an huge job in New York. The format of the storyline takes a bit of a travelogue style and though that does give it some pace, it means we spend way too much time on planes, at airports and touring the sites rather than developing any characters of even a substantial plot. Neither Mature nor Howard really engage, Ekberg has practically no dialogue until the very end and the best effort comes from grifter Bonar Colleano's ("Amalio") who seems way more adept at tracking "McNally" than his policeman buddy. The ending is weak - it's more of a testament to the effectiveness of global policing and communications that it is to a thriller, and I felt the whole thing just lacked oomph.