Reid realizes Maeve has been taken when the kidnapper uses specific code words they had established for her safety.
Reid attempts to trade his life for Maeve's. Diane, who has developed a delusional crush on Reid, agrees to a meeting but forces him to wear a blindfold. [S8E12] Zugzwang
It refers to a situation where a player is forced to make a move, but every available move will worsen their position. Reid realizes Maeve has been taken when the
The stalker is revealed to be Diane Turner , a former student of Maeve's who was obsessed with taking away everything that made Maeve happy after Maeve rejected her Ph.D. thesis. [S8E12] Zugzwang