Example:

"Who dares receive it other, as we shall make our griefs and clamour roar upon his death?
I am settled, and bend up each corporal agent to this terrible feat.
Away, and mock the time with fairest show:
False face must hide what the false heart doth know."
(Act 1, Scene 7, Lines 77-82)

Explanation:

Macbeth murders his king hoping that in becoming king he will achieve great happiness. Actually, Macbeth never knows another moment of peace, and finally is beheaded for his murderous act.