Lucas is an urban explorer: he lives in steam tunnels under universities, explores abandoned warehouses, and freely travels the underground passages of the city. Dishwasher by day, explorer by night, Lucas works alone, watching the lives of others from his secret hiding places.

But when he meets another explorer, he discovers he's not alone after all. A group calling itself the Creep Club breaks into private homes to spy on the people living inside...and they want Lucas as their newest member. For Lucas, the Creep Club steps way over the line; he never spies on people in their homes, only watching them in public spaces. He wants no part of their activities.

But he may not have a choice. Lucas finds himself pursued by secret agents from home and abroad, mafia thugs intent on murder, and gunmen who look just like…him. And it looks like the only way to get out, is to get in the Creep Club.

Lucas, the man who has always been invisible, finds himself drawn into a high-profile race against time as Creep Club members are murdered and he is pegged as the killer. Now he's on the run, and he must find out who is behind all the chaos--before they find him.