Comedy of Errors concerns two sets of long-lost twins that find each other unexpectedly in the same place at the same time.  In Act I, Antipholus of Syracuse and his slave, Dromio of Syracuse, arrive in Ephesus in search of their brothers, Antipholus of Ephesus and his slave, Dromio of Ephesus. Throughout the play, the Ephesians mistake the two sets of brothers for each other, including Antipholus of Ephesus' wife, Adriana.  In the end, all is well when the brothers finally discover each other and even find their mother who is now Lady Abbess at Ephesus.