Matt Sloan is an average student. He shares a flat in Edinburgh, attends lectures and seminars, and at the weekends he parties to excess. Without any responsibilities, Matt's life is free and a whole lot of fun.That is until one Monday morning when he wakes up after a particularly heavy weekend and can't remember who he is. He doesn't know where he is, he doesn't recognise anyone, his best friend has disappeared, and he's now sporting a six-inch scar on his back.As Matt recuperates he tries to remember what happened but his life begins to unravel and fall apart around him. Out of control and out of luck, Matt starts to learn that some stories and people from his past are best left there. But Matt keeps digging and ends up embroiled in a deadly game of cat and mouse.When you can't remember who you are, how do you know who you can trust?