An Englishman who buys a gift for his wife in Trevor's shop is murdered soon after. A student, who unsuccessfully tried to rob Gladys at gun point becomes the prime suspect.
A man who felt mislead by a fortune teller prior to losing his wife and property becomes the zodiac killer to exact revenge on those who'd done him wrong including a now successful astrologer from Gladys' past.
Gladys employs a psychic approach to the mystery of Word War 2 re-creator Joe Thorpe's disappearance, meanwhile Trevor conducts his own style of investigation.
A microlight flyer finds a Roman silver plate, covered with astrological signs. He asks Gladys for an expert opinion. The microlight dies, bringing interest to a crime that some people would like to stay buried, like the silver plate.
In France Cecile escapes a serial killer. Trevor attempts to discover his motives and help the police find the killer before he tries again. Meanwhile a new shop near the French market awakens the competitive side of Gladys.
An old lady in a nursing home sends Gladys on an unexpected journey, as her meeting reveals an old murder. Trevor helps the police to lay an extremely unorthodox trap.
The Moons are asked to investigate a faith healer, who claims that John Lennon is using him to produce a string of new pop songs. The album could make money for the charity and the record industry but murder is never too far away.
The return to Folkestone of the body of a Foreign Legionnaire's sparks off a hunt for stolen diamonds. Sergeant Eavis suspects the Moons are working outside the law.