When Jasper Bennett boards a luxury cruise with his wife Eleanor, he expects a peaceful getaway. But on the second night, she disappears without a trace-and the crew insists she was never on the ship.
Jasper knows they're wrong.
He remembers her laughter.
Her touch.
Her voice.
And now he hears her calling from somewhere beyond the railings.
As Jasper searches the ship, reality bends around him. Passengers vanish and reappear. Time slips. The ocean whispers in a voice only he can hear. And the invisible boundary surrounding the vessel seems to pull him toward a truth no one else can see.
With his mind fracturing and the ship's staff unable to help, Jasper forms an unlikely bond with a fellow passenger determined to keep him safe. But the deeper they dig, the more terrifying the truth becomes: the danger isn't on the ship. It's inside Jasper's own mind.