When MP Charles Latimer notices fellow diner Lorraine Watts enduring the lecherous advances of her companion, his gallant instincts are aroused, and the would-be Lothario is swiftly repulsed witha plate of profiteroles. A grateful Lorraine returns to Charles' flat with him; they learn each other's names in the cold light of morning. And that's when Charles' fiancee, Sybilla, unexpectedly appears...

With Charles temporarily out of favour with Sybilla he's free to pursure Lorraine, who is whirled into new worlds - including the Covent Garden opera and the House Of Commons. Lorraine's father makes no secret of his disapproval, and a close shave with his prospective father-in-law coupled with the activities of a gossip columnist land Charles back into hot water.

Charles is certain he will eventually have to marry Sybilla. He's equally certain he's in love with Lorraine. He faces a dilemma: although Lorraine has persuaded him to take her on holiday to Spain, Sybilla reminds him that he's also to go up to Scotland for the Glorious Twelfth. He hedges with the instinctive evasiveness of the experienced politician.

When Lorraine sees Charles affectionately greeting a young brunette, she jumps to obvious conclusions. Since Lorraine now refuses to speak to him, Charles persuades her Swedish flatmate Astrid to have lunch with him and tell him what's going on.Sybilla enters the same restaurant and things get complicated...

Charles' upper-crust connections prove useful when a stately home is needed for filming of Lorraine's new TV commercial. Lord Cunnigham, otherwise known as Smidger, is happy to oblige and the TV crew moves in. Smidger and his aristocratic friend Henry seem to be living proof that Lorraine's father was right after all, the classes just can't mix.

Britain is a class conscious society. Lorraine's father, a staunch Socialist, thinks Lorraine's long term boyfriend Brian is far more suitable match for his daughter. When the two men get together they find they have more in common than expected.

Noted Italian photographer Serafino wants to take Lorraine on a modelling tour of Europe which would keep her away from Charles for two months. She leaves the decison to charles in the hope that he wouldn't bear being without her. Charles is not the sort of man to make decisions.

Charles' plan to whisk Lorraine away for a surprise Christmas holiday in the Caribbean misfires in more ways than one. Lorraine is unhappy at the prospect of leaving her father George alone, and George is equally alarmed by the thought of spending the Yuletide with his detested Auntie Vi. Worse is to come when the couple arrive at the airport...