Two versions of reality. Woman thinks creepy guy from club is following her, pushes him down some stairs, but he's an innocent man. Story splits into two versions of what happens next.

[Isabel]

Looking for name of book about a women who thinks a creepy guy from the club is following her home. She freaks out and ends up pushing him down some stairs, but it was just an innocent man. Splits into two, one version where she calls an ambulance and he lives and one where she leaves him to die.

[Lobstergirl, au gratin]

It is mandatory to include genre and plot details in your topic header, as per the Group Rules.

Because this group is so huge, we will close threads that don't adhere to this requirement.

Please add more plot details to your topic header from what you've already written.

[Kris]

Isabel, I copied book details to the topic header. Feel free to edit it.

What's the genre - e.g., adult mystery, thriller, fantasy, etc.?

Around what year did you read this book?

[Kris]

Anything You Do Say (also called The Choice) by Gillian McAllister?

Google search of Goodreads:
site:goodreads.com "fiction" "sliding doors" "club" "she pushes" "ambulance"