Dr Harry Riddle and Elinor Darrie are sheltering in a remote Connecticut holiday home. Outside lurks a crazed killer. The police are out searching for him. His next target is Elinor, who lies asleep on the couch. Dr Riddle, desperate, trawls back through the nightmarish events of that day in search of answers. Dr Riddle has seen nothing - and yet, the madman's joyride must have driven right through him. Dr Riddle searches his memories for the killer, and finds only echoes… In looking…