I knew before I rang the bell and knocked with the heavy brass ring that no one was there: there were no lights on in any of the windows, no car parked in the driveway; the house had an unoccupied look. But I stood, stamping my feet in the cold, waiting to make sure. I opened the letterbox and saw only the polished floor. I peered through the downstairs window and saw the tidy, empty living room, the swept hearth, the gleaming top of a grand piano with photographs on top in silver frames. It was too arranged and perfect, like a stage set rather than a home. I wondered what Hugo Livingstone was feeling now. Was he lonely, angry, sad? Did he think about Greg as I thought about Milena, with hatred, jealousy and puzzlement? Did he think about me? Did he know something I didn’t?

That morning, when I had sat over my unsatisfactory breakfast of slightly stale bread and the last scrapings of marmalade, I had decided I needed to look at the picture from the other side. I had examined Greg’s life and found nothing, but what about Milena’s? Although to say that I had “decided” is inaccurate, because what had actually happened was that I had drifted around the house, at a loss as to what to do with myself, picking things up and putting them down, opening the fridge and closing it, shuffling out through the garden, which was neglected and piled with soggy leaves, unlocking the shed door and gazing at the furniture waiting for my attention. Then I’d put on my coat, wrapped a scarf around my neck and walked to the Underground station, without even saying to myself that I was going back to the Livingstones’ house and certainly without knowing what I hoped to find there. Silvio, smiling sarcastically, a signed and dated love letter from Greg to Milena, with a photo of the besotted couple together? His father, assuring me that his wife had never had an affair with Greg and he could prove it with—with what? Nothing could prove that.

There I was, on a damp, gray November morning, staring at the blank windows of the large house and wondering miserably what to do next. Because I couldn’t return to my own small, cold house and deal with the things that were piling up: bills, letters, phone messages, laundry, dead leaves, broken chairs, dust, dirt and drabness. I found myself consulting my map and walking the half mile or so from the Livingstone house to the address of Party Animals, the business Milena and her partner had run together.