This compelling thriller about the horrifying consequences of an adulterous liaison inspired a 2005 movie starring Clive Owen and Jennifer Aniston. A chance encounter on a commuter train between Charles, a married ad exec, and Lucinda, an equally married stockbroker, eventually leads to a rendezvous in a hotel room. Their tryst has an unexpected and shocking ending: a man invades the hotel room and robs them both, assaults Charles, rapes Lucinda, and then proceeds to blackmail Charles. When Charles finally resolves to put a stop to the harassment, he resorts to methods that only succeed in digging him deeper and deeper into catastrophe.