Soviet agents want Marx's manuscript of Das Kapital, and a young woman has just inherited part of it.
Cannon investigates the death of a scientist who designed a computer that searches for extra terrestrial signals. But was he murdered by an entity from outer space or by a fellow scientist with something to hide?
A plane crash is followed by murder attempts.
The fictitious name on a partnership contract apparently comes to life.
Two teenage girls learn about the dangers of hitch-hiking.
A triangle in academia.