This was a sensational masterpiece in Hollywood at that time, and its classics ushered in a new era of Hollywood horror movies. Among them, Freddy Krueger is one of the most terrible villains in Ghost Street. Unlike some hobbled zombies or crazy people waving chain saws, he is even more terrible, because he will lurk in dreams. Freddie's face was burned and his fingers were covered with blades. He found all kinds of creepy ways to attack his victims. Wes Craven, the writer and director, named Freddie after a childhood bully, but the inspiration of this story is much more terrible.

Craven read a series of articles in LA Times, which described in detail a disease called Sudden Death Syndrome (SUNDS), and the incidence of this disease is getting younger and younger. Most of the victims are Southeast Asians, and many of them are refugees from conflicts such as the Vietnam War and the deadly rule of the Khmer Rouge in Cambodia. Of course, these people were not killed by nightmares living in dreams. Matteo Vatta, a professor of cardiology, said that these deaths occurred during sleep, because the heart slowed down, leading to acute cardiac death. There is also a common primary brain death, which is caused by nightmares during sleep. Cerebral cortex activities, including emotional impulses through subcortical and autonomic nerves, have an impact on heart and respiratory function. Insufficient blood supply to the brain, even cerebral ischemia and hypoxia, lead to deepening brain inhibition, and irreversible brain death from lethargy to coma during sleep.