"Crack of Doom" is a story that really is unusual for "Alfred Hitchcock Presents". There is no murder and the story is very straight forward and has a strong anti-gambling message.
When the story begins, a group of businessmen are on the train. One suggests they play some poker to pass the time...no high stakes, just a friendly poker game. But Mason (Robert Horton) refuses to play no matter how much the guys badger him. Later, he explains at length to one of the men about why...and it involves a long flashback to a poker game long ago where he got in over his head...and nearly lost everything.
The story is interesting but there never is the sense of doom or mayhem in the story like most from the series. In other words, it's a very different sort of suspense...and is good but not a great episode. Worth seeing...but no must-see.