A man breaks into homes at night and terrorises women. He eludes police for two years. In the Melbourne suburb of Sunshine, a woman, Ruth Arnott, fears that a man in her own house, a man oppressed by his mother, may be the attacker. The opening scenes take place at Victorian Police Headquarters with the rest at a house in Sunshine.[7]
Early Australian TV drama production was dominated by using imported scripts but in 1960 the ABC was undertaking what has been described as "an Australiana drive" of producing local stories.[8] This was based on an original script by Kay Keavney an experienced writer for radio as well as TV series like The Story of Peter Gray.
To prepare for the production, Muir visited the police department to study criminal detection techniques and meet psychologists. According to The Age Beverly Dunn "has a difficult role to play, involving several emotional scenes".[1]