Dr. Alan Strauss, a therapist mourning the death of his wife, takes on an enigmatic new client; as the two men wrestle with very different, individual problems, their professional relationship is transformed by a choice that binds them together.

Sam delves more deeply into the reason he entered therapy, but he encounters resistance from Dr. Strauss as he attempts to continue their sessions; a gathering sense of not being alone leads to a revelation about the house.

Sam's desire to find a therapeutic solution grows as his inner struggle intensifies; Dr. Strauss brings a new variable into their sessions.

On the threshold of crisis, Sam honours the promise Dr. Strauss made him make as a condition for continuing their work together; the trust built between patient and doctor is tested, with a life in the balance.

Sam reaches out to a woman from his past; trials loom for Dr. Strauss, Sam and Elias.

Dr. Strauss struggles with the reality he finds himself in; Sam is consumed with practical necessities, but agrees to his therapist's advice to make different choices.