Friday (Jack Webb) and Smith (Ben Alexander) are summoned to a church by a Reverend Small (Lawrence Ryle), who reports that one of his parishioners, Dorothy Wilson (Joyce McCluskey) has been receiving anonymous letters and phone calls, branding her a "sinner" and threatening dire consequences. Curiously, though both Small and Dorothy have gotten similar poiosn-pen letters signed variously by "Sister in the Lord" and "D.R. Griswold", only Dorothy has been getting the crank phone calls. The detectives suspect that the obviously neurotic Dorothy is sending the letters to herself--but then the woman is found unconscious in the choir room, bound and gagged! This episode is based on the Dragnet radio broadcast of November 2, 1950. ~ Hal Erickson, Rovi