When a series of items go missing at a nursing home, the police investigate. After Oscar Blaketon discovers her qualifications are false, suspicion is on the owner, Mrs. Hargreaves. It turns out it was actually one of the residents, who was a little absent minded. David becomes involved in house clearing, but after a not very securley attached 6 turns into a 9, David clears the wrong house!

Mr. Lawson, the owner of some disused houses, is furious when a commune arrives and takes them over. Lawson is suspected of breaking into the houses. One of the girls in the commune is pregnant, but Oscar persuades Lawson to allow her to stay there with the baby. An undercover journalist was responsible for the break in.