 Influential columnist Mary K. Davis (Marian Seldes) desperately wants a baby in order to keep her diplomat husband, Ralph Davis (Philip Ober), from leaving her for another woman. She tries to force Dr. George Barnes (Arthur Shields) and nurse Leona Walsh (Josephine Hutchinson) to trade a baby for a stolen book of the doctor s adoption records. Leona consults with Perry Mason for advice. When Mary K. is murdered, Leona confesses to the crime, and Perry must cut a Gordian knot of intrigue to get at the truth.