Plot summary
Abbie and Jenny investigate several suicides at the asylum, which brings up painful memories of the death of their mother, Lori ( Aunjanue Ellis ). Abbie tries to get Irving to help, but he refuses. While reviewing security footage, they are shocked to discover their mother's spirit visiting each of the victims prior to their deaths. With Nick's help, they prevent another suicide from occurring, but Abbie soon vanishes, leaving Jenny with a secret message: 'TPRJLMIL'. Jenny uses the message to find Lori's taped sessions, during which she names Lambert ( Cynthia Stevenson ), her abusive nurse, as an angel of mercy.
The sisters reunite and return to the asylum in time to prevent Lambert from killing Irving. Lambert then tries to kill Abbie, before Jenny uses a spell from Lori's journal to destroy her. They then summon Lori's spirit, learning that before her death, she uncovered a weapon that could defeat Moloch. After saying their goodbyes, they leave, joined by Irving.
Credits
Adapted from Wikipedia contributors, Sleepy Hollow season 2. HTML formatting and reference markers removed.