Buying and selling houses is fraught at the best of times - but now is a terrible time to be caught in a chain. You are reliant on everyone else's mortgages going through and any delays could mean further price falls, re-negotiations, and possibly people pulling out. Propertywatch has been following four families caught up in one chain in Banbury.
Propertywatch, a new series on property prices and the downturn, is broadcast from 11-14 May at 2000 BST on BBC Two.
One-Minute World News 
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