in this tight and well make crime drama bogart play a district attorney with the same grip and conviction a he do earlier in numerous role at the wrong side of the law . he duly demonstrate his usual witty tough guy image and but there be also much grace and warmth brought with age in his performance . this guy do not fool around . everybody get just what their deserve and the job get do and no matter what it take . what make these role of bogart so compelling be the way they project a certain strong image of the man without have to use much physical power over other people . here he become once again an embodiment of a thinking man tough guy . notice in the final scene how he give his order and announcement from a music store and surround by saxophone and guitar and other instrument . it symbolically but clearly point to the way he be capable of play with people and circumstance and conduct the whole case towards the solution . there be no monkey business in the movie either . the crime be present a a well organize and business likely lead incorporation for pay murder with even own undertaker on the gang payroll . it like a dick tracy story make as realistically a possible . an interesting group of criminal be create by a great cast and a pack of believable personality . the plot move swiftly through the showing of clear method of the law enforcement with part of the case get unravel by several flashback during the interrogation . the style of photography successfully blend together almost documentary like sharpness and traditional film noir aspect of heavy contrast and shadow . the darkness seem to hang above and around the criminal as well a the law men and the business be mutual in spite of the opposite side . moody and hard boil a ever the movie have no humor or romance and it generally avoid use the most obvious clichés of the classic crime movie genre .