At the end of both Act 2 and Act 3, noblemen are suspicious of Macbeth and his actions. At the end of Act 2, Macbeth has been named the next king, and all plan to go to Scone to see him crowned. Macduff, however, refuses to go to Scone and says instead that he will return home to Fife. This act of disrespect for the new king suggests that Macduff is suspicious of Macbeth and at the very least suggests that he thinks Macbeth will not make a suitable king. By the end of Act 3, Macbeth has continued to murder those who stand in his way and decides to return to see the witches for another prophecy. Lenox, however, has put together that men are disappearing under Macbeth's rule and is worried that something is amiss. So at the end of both acts, Macbeth is under scrutiny by members of the kingdom.