I was expecting the usual British B' crime drama but was pleasantly surprised. A businessman (Hugh McDermott) returns home from a trip and begins to suspect that his wife (Kathleen Byron) is having an affair with his business partner's son (Peter Reynolds). Eventually Byron and Reynolds confess to the affair. McDermott refuses to give his wife a divorce and during the ensuing hysterics Byron tries to poison her husband. Reynolds realizes what is happening and prevents the murder.
During the next few days Byron comes to realize she loves her husband. Unfortunately, McDermott, believing his wife is about to leave, attempts suicide. He survives a great fall but loses his memory. Now an amnesiac, McDermott is blissfully in love with his devoted wife. Yet Byron fears their bliss is temporary, because if her husband's memory returns, he will surely hate her.
Reynolds then returns to the plot to blackmail Byron and threatens to reveal all to the unknowing McDermott. The cast is exceptional, the dialogue and direction is very good. The plots sounds too much like Coronation Street, yet it is all pulled off in a pleasing manner by a very good team of professionals.