A Frittered Friendship - S10.E8

It's time for the ladies to make their annual visit to the Berkshires. Carole confides in Dorinda and Ramona about some tension with Bethenny, which puts Dorinda in an uncomfortable place. All of the ladies get decked out for a 1920's murder mystery dinner party taking place at Blue Stone Manor, but it's an argument between Carole and Bethenny's that has the ladies guessing whodonnit?