Inner Sanctum Mysteries – 1941-1952 This horror series featured probably the most famous opening in the history of radio. After the greeting, “Good Evening…..Creep,” a door squeaked slowly open and the listener was greeted by the host, a gruesome joke and then the introduction to the story for the evening. The stories were entirely fictitious, highly improbable and were a strange combination of horror and humour. After the allocated thirty-minutes, the host made another joke about the plot and then the door squeaked shut.