“A puzzle for fools” Two sophisticated murders were committed in a private hospital for the mentally ill. The first victim was an ordinary orderly, and the second was Wall Street tycoon Daniel Laribi. But is there a connection between these crimes, the first of which benefited absolutely no one, and the second benefited too many? The police are at a loss. And then the famous director Peter Duluth, bored in the clinic, begins his own investigation... “The Scarlet Circle” Three women are brutally murdered in a resort town on the Atlantic coast, and a circle is drawn on each body with scarlet lipstick. Has a maniac really appeared in a quiet provincial town? The police are convinced of this. But Dr. Hugh Westlake, leading a private investigation, is sure: the criminal is leading the police by the nose and in fact his actions are far from an insane thirst for blood... “Seven from Calvary” Two mysterious murders were committed on the campus of the University of California. The victims were a history teacher and a Swiss man who was on a lecture tour in the United States. What made the criminal choose them? And what do the mysterious messages left on the bodies symbolize? The police are at a loss. And then Sanskrit professor Dr. Ashwin and young graduate student Martin Lam get down to business...