Warning: Recap contains spoilers
The big question going into Part III of The Sinner is whether or not Cora (Jessica Biel) can (and will) claim temporary insanity in the murder of Frankie Belmont. The episode wraps with an answer to that question -- and a bombshell of a revelation that has us speeding into next week. All that and more in this week's recap.
Cora Passes Her Initial Mental Examination