After the loss of the baby, Maddie and David have been avoiding each other. David, in particular, spends his days away from the office. Herbert sees it as a chance to better himself. Agnes arranges for David and Maddie to be stuck together alone in a lift and they come out happy. The agency gets a case where a woman wants them to find out about a mystery woman in her husband's past. They find out that she died in a car accident 10 years ago. Then the current wife dies in the same manner. This leads to a pursuit in a hot air balloon.
—jem