A series of unexplainable accidents befall the people and companies responsible for developing the world's first supersonic airliner. A British agent is sent to investigate and with the help of another agent uncovers a plot masterminded by Carl Petersen who stands to gain eight million pounds if the aircraft is not ready by a certain date.
Matter-transmitter sabotage leaves a British scientist (Bryant Halliday) disfigured and full of amps.
Sly and dry intelligence agent Harry Palmer is tasked with investigating British Intelligence security, and is soon enmeshed in a world of double-dealing, kidnap and murder when he finds a traitor operating at the heart of the secret service.
John Harris finds himself ostracized and placed on trial for allowing his daughter Ruth to die. His religious beliefs forbade him to give consent for a blood transfusion that would have saved her life. Doctor Brown is determined to seek justice for what he sees as the needless death of a young girl.
A former burglar trying to go straight joins a rehabilitation scheme using much the same methods as AA. Through the process, he takes work as a department store Santa, where the endless parade of goods and money, not to mention the pretty young shop hands have him like a moth to a flame in no time flat.