Mr. and Mrs. Peach's favourite neighbours emigrate to Australia, leaving the grieving couple anxiously twitching the net curtains of their suburban cul-de-sac home waiting to see who will be moving in next door. Unfortunately, far from their ideal, a flash, young couple, Mr. and Mrs. Chapman turn out to be their new neighbours.

Ken an estate agent from London gets mysteriously locked in one of his company's properties at number eight Dwellings Close. Inside he meets Gem, an eccentric young woman who claims to be the property's new tenant, together they will try to find a way out.