In town, Wendy meets a smooth-talking man who carelessly forgot to bring his wallet. He offers to sell her an umbrella worth £20 for taxi fare home, a mere £5. At first she hesitates, but his insight and soothing comments win her over. Later, she sees the same man with an umbrella and another woman, and follows him to learn that he steals umbrellas and sells them! When she meets her husband Arthur that night with a new umbrella, and their friend Andrew does not have his, Arthur jumps to conclusions. Wendy can forestall marital disaster only by identifying the man who sold her the umbrella. But will she?