A British policeman (John Gregson) tries to find a rich man's (Alec Clunes) son before a kidnapper's (Robert Shaw) time bomb blows.

Sensuous and desirable, Carol Forrest has always attracted the attention of men. Expert in the art of manipulation and control she married an older man, loving only his vast wealth and continued to amuse herself with indiscreet affairs. But when neighbour Mark Kendrick lets slip that her husband intends cutting her out of his will Carol concentrates all her attentions on the unsuspecting Kendrick, obtaining his help to dispose of this irritating obstacle.

A young woman becomes a murder target after inheriting her estranged father's estate.

In this contemporary update of Frank H. Spearman's Western hero, Whispering Smith is now a sleuth who arrives in London on holiday, but is soon called in to solve the case of a suicide which the father of the deceased woman thinks was murder.

A rocket engineer, responsible for sending a satellite into space, is accused of committing the most extraordinary crime.

While in London trying to nab several fugitives who stole a million dollars from a U.S. Treasury vault, American federal agent Dennison (Dennis O'Keefe) assists Scotland Yard Insp. McClaren (Philip Friend) in his search for a missing atomic scientist (Paul Hardtmuth). The detective duo discovers that the key to solving both cases may rest with the scientist's daughter (Margaret Sheridan) and her fascinating diamond.

Paul Temple is called in to help Scotland Yard track down a serial killer who has murdered several wealthy women.

Tabitha, once the placid, gentle and devoted pet, adopts all the characteristics of a ferocious, wild animal following the murder of her mistress. The three guilty people are all trapped by the cat's power and each will come to untimely deaths of horrific proportions without anyone being able to solve the mystery that surrounds their brutal death.