She walked away.

I waited until her footsteps disappeared.

Then I reopened the file.

There was one other name attached to the transfer request.

Raymond Cole.

I knew the name.

He was a local real-estate developer.

And three weeks earlier, according to the email chain, he’d sent Abigail a preliminary purchase agreement for my mother’s house.

The Camera She Forgot

Mom’s house wasn’t some mansion.

It was a two-story brick home my parents bought in 1989. My father spent twenty-seven years paying it off. After he died, Mom refused every suggestion that she sell.

She used to say Dad had fixed too many things badly for her to let a stranger discover all of them.

That house was hers.

Not mine.

Certainly not Abigail’s.

I kept searching.

The newer camera system was useless because Abigail had deleted the footage, but then I remembered the old recorder in the basement. I’d replaced most of the system two years earlier but never disconnected the original hallway camera.

I went downstairs.

The recorder was still there behind a metal utility shelf.

At 1:43 a.m., I found the first clip.

Mom stood in the hallway holding her phone.

Abigail stepped in front of her.

There was no audio.

Mom tried to move around her.

Abigail took the phone.

Mom reached for it.

Abigail pointed toward the bedroom.

Mom didn’t move.

Abigail opened the door and waited.

Eventually Mom walked inside.

Abigail locked it from the outside.

I watched it twice.

Then I found Raymond.

He’d visited the house six times while I was deployed.

In one clip, he and Abigail stood at the bottom of the stairs while Mom’s bedroom door remained closed above them. Raymond carried a folder. Abigail pointed around the living room as if she were showing him a property.

I copied everything onto two drives.

At 2:26 a.m., I emailed the most important files to a former colleague.

Then I sat in the basement looking at the frozen image of that locked door.

For seven months, I’d been worrying about whether Abigail was lonely.

My mother had been on the other side of that door.

And I hadn’t known.

The next morning, I found Mom alone for thirty seconds while Abigail showered.

I put one finger against my lips.

“I found the videos.”

Mom stared at me.

“How much?”

“Enough.”

Her eyes filled, but she blinked it away.

“What do you need me to do?”

“Today, keep doing what you’ve been doing.”

She frowned.

“Act confused?”

“Just until tomorrow.”

Mom looked toward the bedroom door.

Then she nodded.

“All right.”

Before I left, I removed the lock.

I put it in my pocket.

That was the first night in months my mother slept with her door open.

Abigail Thought I Had Chosen Her

For the rest of that day, I behaved exactly the way Abigail expected.

I asked sympathetic questions.

I let her show me the folder she’d prepared for the psychiatric evaluation.

It contained dates, descriptions of supposed incidents, photographs of bruises and statements about Mom’s behavior.

Some incidents were real.

The explanations weren’t.

That was what made the file convincing.

Mom really had fallen once.

She really had forgotten a doctor’s appointment.

She really had gone outside late at night.

But a missed appointment wasn’t dementia, and walking onto your own porch wasn’t wandering.

Abigail had taken ordinary moments and built a diagnosis around them.

That evening she opened a bottle of wine with dinner.

Mom ate quietly.

Halfway through the meal, Abigail started talking about Mrs. Holloway.

“She finally understands what’s happening.”

I cut a piece of chicken.

“What do you mean?”

“Your mother kept telling people I was stealing from her.”

Mom’s fork stopped.

Abigail didn’t notice.

Or didn’t care.

“At first I was worried someone might actually listen. But once people see enough confused behavior, they stop taking every accusation seriously.”

I looked down at my plate.

My phone was recording beneath the edge of the table.

“So the neighbors believe you?”

Abigail smiled.

“Of course they do.”

Mom looked at me.

I kept eating.

Then Abigail took a sip of wine and said the sentence that ended whatever doubt I had left.

“No one is going to trust that old woman over me.”

Mom lowered her eyes.

I reached under the table and stopped the recording.

“Probably not,” I said.

Abigail smiled.

Later, while she was upstairs, I found Mom standing beside the bedroom doorway.

She touched the empty place where the lock had been.

“Tomorrow,” I whispered, “when the doctor starts asking questions, stop pretending.”

Mom looked at me for a long moment.

Then she smiled.

It was the first real smile I’d seen since coming home.

“I was wondering when you’d finally say that.”

My Wife Brought One File. I Brought Another.

The clinic waiting room had beige chairs, old magazines and a coffee machine that sounded like it was dying.

Abigail sat beside Mom holding a thick folder on her lap.

I sat across from them.

Mom was performing beautifully.

“Are we at the dentist?”

Abigail squeezed her hand.

“No, Adela. Remember? We’re seeing the doctor.”

Mom looked at her blankly.

“Doctor?”

Abigail glanced at me.

I gave her a tired smile.

When the psychiatrist called us in, Abigail immediately handed over her folder.

“I’ve documented everything because Samuel has been deployed and hasn’t seen how serious this has become.”

The doctor looked at me.

“Mr. Mercer?”

I reached into my bag.

“I brought something too.”

Abigail turned.

I placed my folder on the desk.

It was much thinner.

Bank records.

Photographs of Mom’s wrist.

The deleted-security log.

Several still images from the old hallway camera.

And a written summary of the recording I’d already provided to the appropriate investigator.

Abigail’s face changed when she saw the first photograph.

“What is that?”

The doctor looked from the image to Mom.

“Mrs. Mercer, can you tell me what happened to your wrist?”

Mom sat straighter.