Fleeing from a traumatic break-in, Londoners Paul and Tricia Feenan sell up to escape to the isolated Holiwell village where Tricia has inherited a property. Scattered throughout the settlement are centuries-old stones used during the Great Plague as boundary markers. No plague-sufferer was permitted to pass them and enter the village. The plague diminished, and the village survived unscathed . . .

Since then, the village trustees have insisted on an annual ancient ceremony to renew the village boundaries. But then a misguided act by the Feenans' son sends the village into a frenzy, reminding everyone that there's a reason traditions have been stuck to so rigidly--and that all acts of betrayal, even those committed centuries ago, have dire consequences.