In the middle of the night, Sam is woken by angry voices from the apartment above. He goes to the window to see what’s happening – only to hear a struggle, and see a body fall from the sixth-floor balcony. Pushed, Sam thinks. Sam goes to wake his father, Harry, a crime reporter, but Harry is gone. And when Sam goes downstairs, the body is gone, too. But someone has seen Sam, and knows what he’s witnessed. The next twenty-four hours could be his last