The psychiatrist renting the adjacent apartment. His office serves as the narrative conduit through which Marion overhears deeply personal confessions, ultimately disrupting her emotional detachment.
Ken provides the therapeutic setting through which Hope's distress reaches Marion.
The plot states that Hope participates in analysis conducted by a therapist, and Ken is identified as the psychiatrist renting the adjacent office.
Their marriage embodies Marion's emotional dissatisfaction.
The plot explicitly calls Ken Marion's second husband and states that their marriage is unfulfilling.
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