Choose The Man Without A Name. Nightlock Sins, #32

Three doors. Three protectors. One choice. Eve Calder has seventy-one hours before the people who ordered a political murder find her. A freelance photojournalist, Eve captures three frames that were never meant to exist: a district attorney cornered in a hotel corridor, the moment of impact, and the calm face of the man who killed him. With every other witness disappearing, her only chance of survival is Nightlock House-a secret protection network that offers her three candidates and one impossible decision.
She chooses the third man. He has no file. No price. No name. Only a designation: Zero. Zero takes Eve to a fortified apartment fourteen floors above Saint Mercy and gives her three rules: never ask his name, never look beneath his gloves, and never cross a doorway without touching his back first. He removes the door handles, seals the windows, watches every corridor-and seems to know her better than anyone alive.
He knows how she takes her coffee. He owns the discontinued tea she loved years ago. He remembers a childhood lullaby no stranger should recognize. And behind the black leather gloves, he is hiding scars connected to the fire that destroyed Eve's family eighteen years earlier. As the killers close in and Eve turns her camera on the man protecting her, every clue leads toward a truth someone erased from the record.
Zero may be the only person capable of keeping her alive. He may also be the most dangerous mystery she has ever tried to expose. Because the cruelest cages are built from comfort, devotion, and the promise that the locked door is for your own good.