On the 22nd of May 1987 Kenneth Parks got into his car and drove 27 km up a three-lane highway to his beloved parents-in-law's home. He claims he was asleep through his horrific actions until he woke up with blood dripping from his hands. In this episode of Bad People, Dr Julia Shaw and Sofie Hagen look into the science of sleepwalking, sleep terrors, and related parasomnias. What is REM sleep? What are we capable of while asleep? What kind of sleep disruptions are normal? And is there a link between “disorders of arousal” and violence?CREDITS Presenters: Dr Julia Shaw and Sofie Hagen Producer: Lauren Armstrong-Carter Editor: Anna Lacey Music: Matt ChandlerCommissioning Executive: Dylan Haskins Commissioning Assistant Producer: Adam Eland#BadPeople_BBC