I had some real problems with this Untouchables episode. There is no way that Al Capone would have had anything to do with Mike Kellin who plays a man in operational control of his organization's prostitution ring. The man we see Kellin play here is too violent, too quick tempered, just not in control. Especially with Robert Stack and his Feds closing down the houses and going after the come on rackets that recruit the girls.
Kellin is a total jerk. Paul Langton representing the imprisoned Capone tells him to bring in a former Polly Adler type madame in as a partner. But Kellin blows that up as Betty Field won't have anything to do with him.
Later on Kellin has the idea to bring in women from Mexico. But when Ness gets wind of it, Kellin machine guns a whole truckload of them. Bad public relations move for the mob which is just getting over St. Valentine's Day.
The ending is an especially bloody and violent one even for The Untouchables. As for Kellin he meets a violent and somewhat erotically savage end. That might be worth checking out.