in kansas city and the criminal peter harris ( jack elam ) and boyd kane ( neville brand ) and tony romano ( lee van cleef ) be individually hire by a stranger ( preston foster ) that plot the robbery of an armored car after receive the money from a bank in the next door of a flower shop . however and each one of them wear mask and do not know the identity of the others while therefore they can not recognize each other . they succeed in the heist of 1 . 2 million dollar and escape in a van of the western florist and and the mentor of the robbery give ticket to them to travel abroad and promise to share the money later . meanwhile the decorate soldier and ex con driver of the western florist van joe rolfe ( john payne ) that be deliver flower in the shop be frame . he be accuse of participate of the heist and arrest and torture by the police and lose his job and and when the police recognize the mistake and he be release . unemployed and he discover that peter harris go to tijuana and and he decide to chase the criminal and request one fifth of the amount . kansas city confidential be a great film noir and with a good story and development of the character . john payne have an excellent performance in the role of a former war hero that try to have a straight life after some gambling problem and but be frame and lose his job and the rest of his honor and see his picture in the front page of the news and become impossible to find a new job . this injustice trigger his search for the real criminal and not seek for justice and but a share of the money . the character and with the exception of the sweet helen foster and have some sort of amoral behavior and a usual in this genre . my vote be eight . title ( brazil ) represent o 4 desconhecidos ( the 4 unknown ) .