After Sonia suspects husband John of infidelity with his secretary, Hester has her own suspicions about William when he comes home reeking of perfume - after having a business meeting with perfume saleswoman Miss Henshaw who was merely trying out some samples on him. After this is cleared up, the Fields go to a dinner-dance and draw deserved admiration for their energetic Charleston. 

Hester is preparing for a charity cycle ride to Brighton to raise funds for the RSPCA but William can do without her practising five miles a night on her exercise bike when he wants to sleep. Hester takes part in the race but gets caught short and chased by a cow in a field, coming into Brighton in last position. That night, feeling less charitable toward the animals she helped, she throws a bucket of water over two noisy cats outside her bedroom window, soaking Sonia in the process.