Daniel Baker has mentioned echoes of Macbeth in HOC. One of the many clever things about it and its two sequels was the liberal use of quotations from Shakespeare and other dramatists of the period (I think I caught some from Middleton's "The Changeling").
After all, this really is Jacobean drama set in the 1990s!
After all, this really is Jacobean drama set in the 1990s!