Emma finds herself isolated and finally making sense of a past where she murdered Theresa because she was having an affair with Kit. To assuage her guilt she pursues the truth about Jess and puts herself in further danger and leaves herself open to the terrifying presence of John Tyler. Mary numbs her pain with sex and drugs and renews John's mission, unaware he is reaching his dangerous peak.

Emma fights to survive John. Mary attempts a rescue that sees both women fight John to the death. In the coverup Mary learns the painful truth about Theresa. Mary reneges on her promise to clear Emma's name and Emma has to flee. Finding her daughter has been taken by Theresa, Emma vows to find her. The killer of Jess is revealed and brutal justice is delivered to the Lord family.