Dorothy Martin, an American widow living in England, is on her way to lunch with Alan Nesbitt - chief constable, and her own chief beau - when she notices movement in the abandoned town hall and can't resist a snoop. But what she, and cleaning lady Ada Finch, find in there is cause for serious alarm: a dead body. And, what's worse, when Dorothy leaves the building some time later, she notices the corpse's arms have been moved and its eyes closed . . .