Romeo and Juliet
Why doesn't Romeo receive the friar's letter explaining the change of plans?
Act 5
Act 5
Friar John, who was supposed to deliver the letter to Romeo telling him about the plan, apologizes to Friar Laurence for his inability to complete the task. Apparently, during his journey, some people believed that Friar John carried the pestilence (the plague) and locked him in a house.
http://www.gradesaver.com/romeo-and-juliet/study-guide/summary-act-5