A Grain of Salt is the story of a cold case murder investigation. The case involved the murder of a small infant by a means that is very unusual and unheard of by most people. The prosecution was swept under the table until a stranger came to town and reopened the case. This detective was up against small town politics involving old family power and corruption at the highest levels. His struggle to prosecute a murderer resulted in his own prosecution for crimes he was not guilty of by a prosecutor whose motives were a complete mystery.