The Secret House of Death
Ruth Rendell Audio Book

It was his third visit to the gloomy house on Orchard Drive. Each time, he parked in the same place. Each time, he carried a briefcase. And each time, Louise North greeted him at the door...Susan Townsend was the only resident with no interest in the affair going on next door, or in the neighbourhood gossip about it. Yet it was Susan who found the bodies of the lovers, locked not in passion, but in death...