Leonard Swindley starts his new job as Assistant Manager at Dobson and Hawks Department Store. He soon becomes attached to his job in more ways than one when store boss Ernest Parbold sends him to the bank to deposit his specimen signature and collect some change. However when he reaches the bank he realises that he has lost the key to the handcuffs for the money bag he is carrying.
Leonard Swindley tries his hand at super salemanship. His task from Mr Parbold is to land a big order for Dobson and Hawks for a school uniform concession from the headmistress of the local girls school, Miss Buxton, known at all as "Frankenstein's Grandmother". Swindley's old-world charm has made him a big hit with the ladies of Dobson and Hawks.
Every time Swindley goes to the bank he takes his life in his hands. The answer, he decides, is judo. But when he tries throwing his weight around he causes trouble for everyone. After a few bouts with Mrs. Edgeley, Swindley turns to coaching and enrols at Gerry's Gym, persuading Mr. Hunt to join him. His boss turns out to be a natural.
A bunch of high-powered executives descend upon Dobson and Hawks and it looks like the store is about to be sold to a trendy new company. It's a hostile take-over but it appears that the deal rests upon convincing one shareholder with 10 shares to sell - the owner? - a certain Mr Swindley and he makes the most of his predicament!
As the store prepares to announce encouraging sales figures, only one department is lacking ... and that department is currently holding a gathering for the ladies book reading circle - hosted by Mr Swindley! In an effort to increase profits, Mr. Hunt arranges a closing down sale of pulp fiction in the Book Department - Mr. Swindley is in a cultural state of shock and his mood is not helped when he is arrested for selling obscene material!
Swindley's never been allowed to forget that Leading Seaman Bell once saved his life; now he may be able to repay the debt. Swindley's just moved into Dobson and Hawkes' show flat when Bell visits. With Brigadier Hawke on his way to see the flat, Mrs. Bell comes to stay - followed by a second Mrs. Bell. Can Swindley keep the two women apart, and out of the Brigadier's sight?
The manager of the chain's biggest store is leaving, and Swindley sights a promotion; if he can get Hunt into the post, he'll be hot favourite for Hunt's old job. He plans an intimate dinner party for the chairman, Lord Penge, and his lady, with candlelight and, he hopes, witty discourse. There's just one hitch - Mrs. Hunt can't cook.