Foul deeds will rise,
Though all the earth o’erwhelm them, to men’s eyes.

– William Shakespeare

Hamlet, Act 1, Scene 2. Hamlet suspects that there was foul play and corruption involved in the death of his father. This follows Horatio’s revelation about the appearance of King Hamlet’s Ghost in the castle, wearing his armor. The lines foreshadow that foul deeds, despite being buried and hidden, will be exposed for all to see.