A man is found dead in a London hotel. The knife is still firmly stuck in the victim's chest, and Inspector Perkins strangely finds a glass eye in his jacket pocket. Kurt after that a second, mysterious murder happens: A city-famous dancer of the Las Vegas Girls, who perform at the London Odeon Theater, is poisoned. Is there a connection between the pretty dancer and the hotel guest? Inspector Perkins and his colleagues are pressed for time. The "man with the glass eye" strikes deadly again and again. A first clue leads Scotland Yard to a billiard club, where one has to show a glass eye as an admission ticket.

Marina Pinares, the wife of the president of a South American country, insists on being his vice-presidential running mate in the next election. She's no stranger to assassination to get what she wants, so some suspect she'll kill her own husband after the election to become president. In a series of flashbacks we see her rise to power: a party girl willing to sacrifice a friend's virtue to gain favor; the lover of a soldier she later tortures; the mistress of the military man she soon marries.

After a businessman's unfaithful wife is seemingly killed in a car accident, he is led by several unscrupulous characters to believe that she is actually alive.