Glamorous model Suzanna marries the only son of wealthy American widow Geneva. On the surface life seems to be perfect until Suzanna starts to get anonymous telephone calls.
Marvin and Drew face their toughest contract hit when they are tasked to murder a Leonidas, a gangster who lives on a private island where other attempts before have all failed.
Jennifer Baker is vulnerable and alone, following the departure of her husband, following numerous obscene phone calls. Fortunately Sgt Evans seems to have taken a personal interest in her case.
Businessman Martin Willis has hit financial short fall but his wealthy wife Sybill refuses to bail him out. Willis friend Alex Ferguson gives him a telephone number and his wife would meet an 'accident'.
British and USSR agents and bodies are found all over London. It is decided the MI5 agent Sanford and KGB agent Yerimenko should work together to kill double agent and former Nazi Gebhardt.
Wealthy widow Anne Gordon has been stealing small antiques from parties and fencing them to Conrad. Spooked by the police she organises a hit on Conrad believing this will end the partnership.
Simon Page has to visit Amsterdam, on business, prior to joining his wife and friends Norman and Mary Nugent, in Italy. On their first night, Simon makes a cryptic call to his wife before he is cut suddenly off.
Just as the Fraud Squad arrive at the country house of tyrannical telephone entrepreneur Owen Ringway, he is found murdered. Det. Chief Insp. Green is told that the two are connected and she investigate both.
Hugo Vardon likes to show of his trophy wife among his rich friends at the gun club. However when a good looking Australian appears on the scene he becomes overwhelmed with jealousy.
Jean Browning leaves husband and moves to a mews house, in London. Her new cleaner turns out to be a recently divorced man. They spark up a friendship but soon his behaviour starts to change.
Henry Frazer's wife Alison has left him for his wealthy father Wag before moving to Gibraltar. Henry wants revenge on his father and arrives with a well hidden shotgun.
Kath runs a telephone message service with a loyal bunch of customers. When a client's wife is involved in a car crash she makes the decision to go and visit him only to discover he is a hit man.
