'No man can crack the enigma code'
Turing is arrogant and brilliant, his mathematical skill were recognised as a child. He is emotionally fragile and unfortunately has no social skills at all. He is admired by his peers, but they will not help him, even after he gets help from Churchill himself to build a machine he calls 'Christopher', named after a childhood close friend who died.
One needs to pay attention as the film flashes repeatedly back and forward, on occasion showing the same time zones at once. Sexism and prejudice are a sign of the times and the British stiff upper lip is taken to extremes. One may feel sad or angry or both as this disturbing story unfolds.
This will bag lots of awards, one that will be missing is for verisimilitude and there isn't one for that. Was there music? I don't know - this reviewer was too involved to notice.