A rich but disliked elderly man invites his relatives to a family reunion at his home. Once the gathering is complete, he announces enigmatically that he intends to change his will before he dies. Before he can do this, he is murdered. His niece (Gynt), a detective story writer, has to put her theories into practice by solving a real-life murder mystery.
A crime is committed during what should be a routine house inspection. Detective Harper interviews each of the possible suspects and ultimately solves this delicious crime.
Detective Inspector Campbell (Gordon Jackson) looks into the murder of a teacher at a girls school where there are a number of suspects, including her colleagues and the married man she had been seeing.
Adam, a troubled young man with a secret obsession to kill, is placed under the care of Dr. James Franz, an unorthodox psychologist who faces a moral dilemma: report Adam's homicidal ideation or solve him before he acts out murder.
