The Billionaire's Dead Wife Returns

Ava Montgomery died in a tragic car accident. She left behind her three year old daughter, Ruby and her husband, Zac. She was buried and mourned. The end. That's how the story goes.
Except, four years later, AVA walks inside a police station alive. Hurt but alive and with no recollection of who she is.
Despite not remembering anything about her identity, Ava is determined to find out who wanted her dead, to keep herself and her family safe.
Everyone is a suspect and Ava is a target. She'll do everything in her power to make sure she doesn't suffer the same fate again.
She is Ava Montgomery and she won't be killed twice.

Zac Montgomery got the call that changed his life. His wife is dead. For four years, he mourns her. For four years, he wished he'd done things differently. For four years, he regrets letting her drive in the storm that claimed her life.
He looks at their daughter, Ruby, and can't imagine what he'll say to her when she's old enough to know that her mother is dead because of him.
Four years later, Zac gets the call that changes his life. His wife, Ava, is alive.
Zac doesn't believe it. He can't. But the more time they spend together, the more he has to trust in what he sees.
But what if what he sees is not the whole truth? Is he ready to face what the truth really is? Zac starts asking questions but he's not nearly prepared for what the answers might be.
Who killed his wife? How far are they willing to go to kill her for the second time?