Firefly Effect

When a single dad moves to a small mountain town and becomes obsessed with a potential client-a beautiful woman haunted by her tragic past.

For years, tales of the Firefly Man were nothing more than elaborate rumors spread by residents of the Appalachian Mountains.
Until the night Evelyn Vaughn stumbled upon a dead body in the woods.
Fear gripped her, and silence stole her voice.
All while she watched the boy she was with that night take the fall.

Fourteen years later, Evelyn is nothing more than a shell of her former self.
Her life moves like a clock from one moment to the next, never a surprise.
Gone are the days of chasing fireflies through the woods.
Until her therapist goes missing and he's replaced with someone new.
Dr. Lincoln Reed, a devastatingly handsome single dad with an intensity behind his evergreen eyes that jolts her back to life.

Or does it?

Evelyn is quickly losing grip of the suppressed reality she's worked so hard to maintain.
With every new session on Dr. Reed's couch comes a startling new revelation that has her past awakening like the sparkles of light she used to chase through the nighttime woods.

The Firefly Man was supposed to be a rumor, a fable, a spooky tale.
But Evelyn knows the truth.
He's her very own phantom.
And he's back.

Tropes: romantic suspense, single dad, doctor / patient, forbidden romance, small town, mystery / thriller, slow burn romance, obsessed hero