Clint Eastwood directed his debut and played a late-night radio host in the film. When his relationship with his girlfriend was at a low ebb, he accidentally had an one-night stand with a female listener who adored him, only to be entangled with him ever since, and later developed a murder relationship that led to jealousy and hatred. The atmosphere of the whole film is well mastered, and some of the scenes can be frightening. In addition, the theme song "I see your face for the first time" is very pleasant to listen to, and friends who like to listen to the radio should not miss it.