Ian Carmichael ("Jack") and his fiancée "Peggy" (Janette Scott) fall foul of her rather fastidious landlady and are soon looking for a house. As luck would have it, they discover a houseboat and for a mere £750 they have their dream home/yacht. Not long after moving in they meet their landlord "Watson" (Dennis Price) who wants to double the rent for their mooring. Extortionate, so he - a mechanic, encouraged by his pal "Sid" (Sidney James), decides to get the old tub mobile again, and off they go for some fun folics on the river with "Sandra" (Liz Fraser) along too. It's a very gently paced nau... read the rest.