The Other Side of Night begins with a man named David Asha writing about his biggest regret: his sudden separation from his son, Elliot. In his grief, David tells a story. Next, we step into the life of Harriet Kealty, a police officer trying to clear her name after a lapse of judgment. She discovers a curious inscription in a secondhand book—a plea: Help me, he’s trying to kill me. Who wrote this note? Who is “he”? This note leads Harri to David Asha, who was last seen stepping off a cliff. Police suspect he couldn’t cope after his wife’s sudden death. Still, why would this man jump and leave behind his young son? Quickly, Harri’s attention zeroes in on a person she knows all too well. Ben Elmys: once the love of her life. A surrogate father to Elliot Asha and trusted friend to the Ashas. Ben may also be a murderer.​