Cecile Chevreau

A small group of closely-guarded British scientists test their first rocket amidst indications of matrimonial strife in the community. After the partial failure of the firing, a couple go missing - have they gone off together or are their murdered bodies circling the earth in the remains of the rocket? (imdb)

A failed business deal forces James Nevill to blackmail his weak-willed friend into murdering him so that his wife can collect his insurance, but circumstances suddenly change. (imdb)

A murderous twin gets his comeuppance.