Juan Cesarabea

When an international casino crime ring is planning a big score at a fixed roulette game, the casino police enlists the help of Jeff Miller, an alcoholic croupier, to nab the bad guys. Jeff is attracted to Laura, a singer at the casino, but she prefers the company of the leader of the thieving casino ring.

Manuel Jacques Perrin is a young man from the country who tries to make it in Madrid in this somber melodrama. He struggles to survive in the unforgiving city where only the strongest will prosper. Manuel defends himself and kills a murderous thief in a fight then quietly waits for the police to reach the scene of the crime.

Matilde is a former prostitute who gets married to an american soldier with an uncertain future, due to the possibility of being recruited to the Vietnam War.