An American oil man in Mexico tracks down and kills a suspected payroll robber. Afterwards, he begins to doubt the actual guilt of the man he's killed, so he sets out to find the man's family and meets his widow. Falling in love, the two are married but the oil man still has guilt about his responsibility in the man's death. Discovering the identity of the true culprit, the oil man sets out to get him but the criminal is killed before he arrives. Now accused of murdering the criminal, the oil man must face his conscience and the consequences for his deeds.