"No Pain" is a real product of its times. When most people see it today, they might be confused to see the star of the episode, Mr. Rainey (Brian Keith) stuck in an Iron Lung machine. What is this and why is he there? Well, until the developed the Polio vaccine, countless thousands of people were stuck...confined in these devices in order to survive following the paralysis caused by the disease. The Iron Lung used air pressure to help these afflicted people to breath, as otherwise they would have died. But in many cases, they would end up confined this these contraptions for years...or the rest of their lives. Thank God for the vaccines that mean we don't have to use the devices any more.
In addition to Keith, the episode also stars Joanna Moore...both of which had appeared in earlier episodes of the series. It begins with Mrs. Rainey saying goodbye to her husband, as she's going out sailing with some young man. Naturally, Mr. Rainey cannot join them. Later, after she returns, the missus contemplates turning off the machine, as Mr. And Mrs. Rainey are all alone and will be for sometime. What's next? See the show.
This is one of the darker episodes I can recall. Now this doesn't mean it's bad...it's actually very good. HOWEVER, as often is the case, following the 'perfect crime' in the episode, in the Epilogue, Hitchcock explains that the folks who committed the murder were caught and punished...which completely negates so much of the good in the show. I am sure he was doing this to appease nervous sponsors, but it IS a show often devoted to murder after all!!