The Ace of Spades (1935)

The wife of a candidate for Parliament is having an affair with the brother of her husband's rival. Her lover is running for election on a promise of building a railway that the community needs, but a wealthy landowner won't give permission for the railway to be built over his land. When the landowner is later found dead, suspicion falls on the adulterous candidate.

Unfortunately the movie The Ace of Spades is not yet available on HBO Max.