Copyright © 2008 John Rebus Ltd.

The open door was only yards away, and beyond it lay the outside world, eerily unaffected by anything happening inside the abandoned snooker hall. Two thickset men had slumped bloodily to the floor. Four more figures were seated on chairs, hands tied behind them, ankles bound. A fifth was wriggling like a snake towards the doorway, straining with the effort. His girlfriend was yelling encouragement as the man called Hate stepped forward and slammed the door shut on all their hopes and dreams, hauling the chair and its occupant back to the original line.

‘I’m going to kill you all,’ the man spat, face smeared with his own blood. Mike Mackenzie didn’t doubt him for a second. What else was someone called Hate going to do? Mike was staring at the door, reminded that this chain of events had begun – so innocently – with a party and with friends.

And with greed.

And desire.

But above all, with doors opening and closing.

Mike saw it happen. There were two doors next to one another. One of them seemed to be permanently ajar by about an inch, except when someone pushed at its neighbour. As each liveried waiter brought trays of canapés into the saleroom, the effect was the same. One door would swing open, and the other would slowly close. It said a lot about the quality of the paintings, Mike thought, that he was paying more attention to a pair of doors. But he knew he was wrong: it was saying nothing about the actual artworks on display, and everything about him.

Mike Mackenzie was thirty-seven years old, rich and bored. According to the business pages of various newspapers, he remained a ‘self-made software mogul’, except that he was no longer a mogul of anything.