Arriving at a medical building, Friday (Jack Webb) and Smith (Ben Alexander) investigate the disappearance of society matron Louise Marston. Filing the missing-persons report is Louise's husband, dentist Robert Marston (Whit Connor), who explains that he waited two weeks to notify the police of his wife's absence because he has been receiving letters from her, postmarked New York City. Meanwhile, Louise's stepfather (Willis Bouchey) suspects Marston of killing his wife so that he could collect an inheritance and set up his own dental building. The two detectives finally learn the truth just before construction of Dr. Marston's "dream office" gets under way. This episode is adapted from the Dragnet radio broadcast of June 14, 1951. ~ Hal Erickson, Rovi