This has a rather slow and dull beginning complete with government warnings and allusions to illegal gambling and racetrack activity. Things do improve, however, and if Edmond O'Brien is not my ideal leading man, he does well enough as an honest Joe gradually corrupted and brought into big time crime. Joanne Dru, similarly, is not the most convincing of femme fatals but she does well here, perhaps falling for our man so quickly that we think she is still only kidding and doing her boss's bidding. Indeed big boss Otto Kruger is probably the strongest performer here and helps gradually propel this picture to something more interesting. Lots of location shooting with wonderful contemporary cars and buses plus street and crowd scenes and finally the denouement at the great Hoover Dam. Up until shortly before filming known as the Boulder Dam, this straddles the border of Arizona and Nevada and is a fitting finale with its cavernous tunnels, walkways and stairways. Good but not great.