My girlfriend had been home for less than thirty seconds when our dog backed into the kitchen cabinet, bared his teeth, and began growling at the woman he’d slept beside every night for three years.
Chapter 1
She stood in our doorway with her familiar smile, her dark hair brushing her shoulders, and the gray travel bag I’d helped her pack the previous Saturday. Everything about her looked right. But when she reached down to greet the dog, he retreated as though she’d brought something terrible into our home.
“What’s gotten into Charlie?” she asked, sounding amused. “Did he forget who I am?”
I stared at her. Her voice was almost perfect, but something about the way she pronounced his name made my stomach tighten.
Charlie was our retired racing greyhound, a gentle animal who loved everybody. He adored my girlfriend, especially because she let him sneak onto the bed whenever I wasn’t looking. I’d never heard him growl at her before.
“He’s probably just confused,” I said.
She dropped her bag and stepped into my arms.
For a few seconds, I held her exactly as I always had. Her cheek rested against mine, and her hands settled between my shoulder blades.
Then I noticed the smell.
My girlfriend, Claire Morgan, had worn the same gardenia-scented lotion since the day we met. This woman smelled like vanilla and something faintly medicinal.
It was such a small difference that I felt foolish noticing it.
But noticing small differences was how I made my living.
I was forty-one years old and worked as a piano technician in Minneapolis. I’d spent almost twenty years tuning instruments in churches, schools, retirement communities, and private homes.
I could hear when a note was slightly sharp or flat, even when everybody else thought the piano sounded fine.
And that evening, something about Claire sounded wrong.
She had been away for a week, supposedly visiting her aunt in northern Minnesota for a family birthday celebration. We’d spoken briefly by phone, but she’d claimed the reception was poor and spent most of the trip communicating through text messages.
I hadn’t worried.
We’d been together almost three years, sharing a modest apartment in Saint Paul with Charlie. Claire was thirty-seven, worked remotely as a bookkeeper for a transportation company, and seemed happiest when her life followed an orderly routine.
She labeled leftovers with dates, kept our bills arranged in folders, and always reminded me when the furnace filter needed changing.
I loved those ordinary details about her.
Or I thought I did.
That night, I made her favorite lemon chicken.
We sat at our small dining table, and I asked about her trip.
“How was your aunt’s birthday?”
“Wonderful,” she replied. “Everybody was there. Aunt Margaret cried during the cake.”
She laughed softly.
I watched her cut her chicken.
Claire was right-handed. I’d watched her write grocery lists, chop vegetables, and sign birthday cards hundreds of times.
But the woman across from me held her knife in her left hand.
I tried to ignore it.
People could change habits. Maybe she’d injured her wrist during the trip.
“Did you hurt your hand?” I asked.
She looked up.
“No. Why?”
“Nothing. Just noticed you’re using your left hand.”
She glanced at the silverware.
“Oh, that. I’ve been trying to use both hands more. It’s supposed to be good for your brain.”
She smiled.
It sounded reasonable enough.
But Charlie remained near the balcony door, refusing to come anywhere close to her.
Later, when we went to bed, another detail disturbed me.
Claire always slept curled toward the bedroom wall, one foot resting against my leg. This woman lay flat on her back, hands folded over her stomach.
She fell asleep almost immediately.
I stayed awake listening to her breathing.
By two in the morning, I was telling myself that I had become an anxious, unreasonable man.
The next day, however, things grew stranger.
We went to a neighborhood restaurant for brunch.
Claire ordered shrimp tacos.
I stared at her.
“Claire, you can’t eat those.”
She looked puzzled.
“Why not?”
“Because you’re allergic to shellfish.”
For a moment, her expression was completely blank.
Then she laughed.
“Oh, goodness. I forgot to tell you. I saw an allergy specialist while I was away. He thinks I may have outgrown it.”
“Since last Saturday?”
“Apparently.”
Claire had suffered a serious allergic reaction at a wedding years earlier. She carried an epinephrine auto-injector everywhere.
Yet this woman ate every bite of those shrimp tacos without the slightest problem.
Back home, I checked her travel bag while she showered.
There was no emergency medication.
I searched the outside pockets, the lining, and the small compartment where she’d always kept it.
Nothing.
When she came out of the bathroom, I asked where it was.
“I must have left it at Aunt Margaret’s.”
“You never leave it anywhere.”
She sighed.
“Daniel, please. I just got home. Can’t we have one peaceful weekend?”
Her eyes looked wounded.
I apologized.
That’s something I would think about many times afterward.
Every time I noticed something impossible, she made me feel ashamed for noticing.
Monday morning, she couldn’t find the coffee mugs.
They’d been in the same cabinet for three years.
She laughed and blamed exhaustion.
Then she announced that her employer had given her two weeks of vacation.
Claire had always been meticulous about work. She started at eight every morning and disliked taking unexpected time off.
When I asked why her boss had suddenly granted such a long break, she shrugged.
“He thought I needed it.”
That afternoon, she locked herself in the bathroom.
Claire had never locked that door.
While the water ran, I went through her travel bag again.
This time, I found a folded index card hidden beneath the lining.
It contained a list written in Claire’s familiar neat handwriting.
“Daniel drinks oat milk. His mother calls Sunday afternoons. Don’t touch his ears. Charlie gets nervous around strangers. If Daniel becomes suspicious, cry. He can’t stand seeing someone upset.”
I read the last sentence three times.
My hands began shaking.
I heard the bathroom door open and quickly slipped the card into my pocket.
When she entered the bedroom wearing a sleeveless shirt, I noticed something else.
Claire had a pale, comma-shaped burn scar on her left forearm. She’d gotten it at nine years old when a kettle overturned in her grandmother’s kitchen.
I’d kissed that scar more times than I could count.
The woman standing before me had smooth, unmarked skin.
“Claire,” I whispered, “where’s your scar?”
She looked down.
“What scar?”
“The burn on your arm.”
She extended both arms.
“Daniel, I don’t have a burn scar.”
I felt suddenly cold.
“Yes, you do. You’ve always had it.”
Her eyes filled with tears.
“Why are you doing this to me? I come home because I miss you, and you keep acting like I’m somebody else.”
She began crying.
I stood there unable to move.
Then, as I always did when Claire was upset, I reached for her.
“I’m sorry,” I murmured.
But while I held her, I looked over her shoulder at Charlie.
He stood in the hallway, trembling.
And for the first time in my life, I was afraid of the person sleeping beside me.
