[2] J. Lee Thompson also wrote the screenplay adapted from Double Error, his own successful West End play.

[3] Following a bitter row, writer Stephen Holt (Derek Farr) walks out on his wife Jan (Patricia Plunkett) and goes to drown his sorrows at a nightclub.

A drunken Steve ends up returning home with the club's wily hostess, Grena (Joan Dowling).

The New York Times said "the play's quality consists not in its crude and obvious plot but in the character drawing of the sadistic neighbour.

[11] Variety reviewing the John Carradine production said "There is much too little in the J. Lee Thompson opus for a satisfactory theatre session.

The film version never breaks out of its original confines and is restricted in space and action... One of the most verbose examples of recent British productions, this is overloaded with precious dialog to fit the suave character played by Dennis Price.

"[14] In The New York Times Bosley Crowther noted "a harmless, and, for the most part, pleasurable, addition to the horror-with-a-twist genre.