The last thing I remember - Andrew Klavan

Dazed and confused, Charlie wakes up strapped to a chair in a windowless cell. The last thing he remembers is falling asleep in his bedroom. Now he's aching all over, covered in blood, and, worse, someone behind the door has just ordered his death.
Charlie knows this is no nightmare, what he doesn't know is how he got here and more importantly, how he's going to get out.........