A woman wears a low-cut dress that reveals some cleavage.

People die in mysterious ways with their heads and necks crushed. Implied, but not shown.

In a conversation with Proffessor Moriarty and his assistant, Moriarty makes reference to being whipped, broken on the wheel, hung, drawn, and quartered. In the same conversation, he makes light of murder.

None. Except Good L***

Sherlock Holmes smokes pipes throughout the film.

In a party scene, you see men and women drinking what is probably punch.