Parallel World Thriller - Opening Chapter

Thoughts on this opening of a Psychological Thriller / Mystery / Paranormal novel?

She rings the doorbell.

Almost five minutes pass before the door finally opens.

Hi. Come in. Sorry I kept you waiting. I was busy with something.

She looks at him, smiling as she nods.

It's okay.

She shakes his hand and notices that it's cold and slightly wet.

Sorry, he says. I just washed my hands.

This is only her second time visiting him.

His house is quiet. Spotlessly clean. It smells strongly of antiseptic.

Something feels... off.

She shakes her head.

Don't be ridiculous.

Nothing is wrong. He's the nicest client I've ever had.

She sits on the couch while he sits beside her. He gently kisses her neck before pulling away and smiling.

"You know what? Let me make you a drink. I'm pretty good at making cocktails."

She smiles back and nods.

As she watches him walk toward the kitchen, the thought returns.

Why does he smell like antiseptic?

She raises her voice.

"I need to use the bathroom."

"Sure," he replies.

"Okay."

She walks toward the bathroom.

The forbidden room is right beside it.

As she passes by, she remembers what he told her the first time she was here.

Whatever you do... don't go into that room.

She stops.

The key is still in the lock.

That's strange...

Why would he leave the key there if he doesn't want anyone going inside?

Maybe he was just in a hurry.

She stares at the door, hesitating.

She shouldn't.

She knows she shouldn't.

But curiosity has always been her biggest weakness.

Just one quick look.

He'll never know.

She slowly turns the key.

The door creaks open.

The moment she steps inside, her heart begins pounding violently.

Her face goes pale.

"...What?"

"Oh God..."

"No... no, no, no... Please... I don't want to die."

Two lifeless women lie on the floor.

One has her throat brutally cut.

The other has been disemboweled.

Her stomach twists.

She can't breathe.

She's terrified.

Then—

Footsteps.

Getting closer.

Fast.

Her eyes dart around the room.

"Fuck... I need to get out."

A white door.

She runs toward it without thinking, throws it open, slips through, and slams it shut behind her.

Silence.

She looks around.

A narrow alley.

She turns around.

The white door is gone.

Only an old brick wall stands behind her.