Roscoe Arbuckle plays a rude family man who argues bitterly with his wife and pushes around his young son (played by a twenty-one year old Buster Keaton!). When he is lured in by a greedy vamp who, along with her thieving cohort played by Al St. John, his wife's jewels are endangered, in addition to Arbuckle's own finances, which are all at stake in a horse race.

Oh Doctor! is one of Arbuckle's stronger efforts, with more of a coherent plot and character-based gags. Arbuckle plays a truly horrendous person, which is funny in a dark way. Al St. John seems to be a love or hate performer in my circles, but he's great here as the scheming conman. Folks used to Buster Keaton's stoic manner will be shocked to see him mug so here, crying and laughing and whining with his mouth gaping open at its fullest capacity. Especially hilarious when you read interviews of his from the 1950s and 1960s in which he proclaimed he could not smile in front of a camera ever. That's show business, kiddos.