Best performances
David Threlfall as Dr. Kritzinger. His path from impatience to realization to anguish, and final intimidation and resignation. were utterly believable.
Colin Firth's Dr. Stuckart. His tirade was masterful. I completely bought him as a legal expert who was enraged that his idealogical colleagues grasped neither the critical role of law in their discussion nor his authority on the subject.