She can't remember. He won't confess. Her mother knows more than she's telling.

Paige Thomas can't remember the last twelve hours, but someone recorded them.

The successful self-help author has been living a secret life during her blackouts. Visiting pubs, wearing clothes she doesn't own, and making choices her conscious mind would never allow. She and Michael are trying for a child, but how can she consider bringing one into her life when she can't trust herself with the hours she can't remember? Desperate and in denial, Paige hides what's happening, turning to fiction to cope with the anxiety that's slowly consuming her.

Her husband Michael, a rising psychiatrist, should be the one person who understands. Instead, he's buried in a deception of his own, one he has convinced himself is an act of love. When anonymous emails begin to arrive, exposing pieces of both their hidden lives, his certainty begins to crack. If Paige discovers the truth, he will lose her. And he knows it.

Searching for answers, Paige turns to her estranged mother, Darlene, a hardened survivor whose past mirrors Paige's present in ways that cannot be coincidence. Now all three are on a collision course with a truth none of them is prepared to face.

And someone is watching them all.