English aristocrat Tony Last welcomes tragedy into his life when he invites John Beaver to visit his vast estate. There Beaver makes the acquaintance of Tony's wife, Brenda. Together, they continue their relationship in a series of bedroom assignations in London. Trusting to a fault, Tony is unaware that anything is amiss until his wife suddenly asks for a divorce. With his life in turmoil, Tony goes on a haphazard journey to South America.
A reporter named Mullen 'stumbles' onto a story linking a prominent Member of Parliament to a KGB agent and a near-nuclear disaster involving a teenage runaway and a U.S. Air Force base. Has there been a Government cover-up? Mullen teams up with Vernon Bayliss, an old hack, and Nina Beckam, the MP's assistant, to find out the truth.
Antonia Lynch-Gibbon, wife of upper-crust wine dealer Martin, falls in love with her husband's best friend, noted psychiatrist Palmer Anderson. While both Palmer and Antonia would like to remain in Martin's life, he has some secrets of his own — namely, a mistress called Georgie, whom his womanizing brother also desires. All the while, Palmer's sister Honor seems to know everyone's business.