Ted Mallard is a businessman who has a branch office in London. He travels there frequently.

Upon returning to New York from his latest trip he is detained by customs and arrested for smuggling cocaine.

He is jailed without bail.

He maintains his innocence and his wife Myra believes him but a police officer visits her in the hope of getting her to persuade her husband to cooperate with the investigation. He tells her that her husband is part of a smuggling ring and that he keeps another woman in an apartment as part of a double-life that he is leading.

He denies it and she is left to try and determine whether or not she has been duped by the man she thought she knew.

This is a pretty good whodunit type of episode.