There are various references to the work of
William Shakespeare: the title hails from "Hamlet" Act I, Scene V (lines 27-28) where the Ghost speaks: "Murder most foul, as in the best it is;/But this most foul, strange, and unnatural." A key phrase in the film hails from "Romeo and Juliet" ("What's in a name? That which we call a rose/By any other name would smell as sweet" (Act II, Scene II)). And Cosgood alludes to "Macbeth"'s line "Sleep that knits up the ravelled sleave of care" (Act II, Scene II, lines 34-35).
more