A Leonardo, a forger of currency, is sought by practically everybody.
The vortex of the paranoid: Mannix is threatened and framed.
Old friend dies on a mob run, they suspect Mannix.
Japanese consular matters entail a private eye and Mannix's cooperation
Mannix takes the case of a muder victim in a photograph.
His wife says somebody else came back from the crash.
A chance meeting between two Vietnam veterans proves fatal for one of them after they are spotted by a third buddy, a deserter who has no intention of being turned in.
The death of an inventor raises questions of motive.
On an island off the South American coast, Mannix seeks out the rescuer of a client's son.
An assassination plot is revealed in the course of Mannix's investigation.