Two men, a fisherman and banker, have both died of carbon monoxide poisoning while sailing in the waters around Cabot Cove. At first this seems to be merely a coincidence--but then the fisherman's daughter gains access to her father's logbooks and charts. Suddenly, a link develops between the two men, forged by an illegal sale of surplus defense-corporation components--and Jessica (Angela Lansbury) begins to take interest in the situation. ~ Hal Erickson, Rovi