The Affair explores the emotional and psychological effects of an affair that destroyed two marriages, and the crime that brings these individuals back together.
Season 4 finds Noah (Dominic West), Helen (Maura Tierney), Alison (Ruth Wilson) and Cole (Joshua Jackson) in their own orbits, alienated from each other, spinning further and further away from where they all began.
Every character is involved in a new relationship, forcing them each to decide if they're ready and willing to leave the past behind for good - with a season about new beginnings, tragic ends and the ever-elusive possibility of forgiveness.
Sanaa Lathan joins Season 4 as Janelle, the tough-as-nails principal of the charter school where Noah teaches. Their professional relationship soon turns intimate and is further complicated by the presence of her brilliant, misunderstood son Antoine (Christopher Meyer), a student in his class.
Ramon Rodriguez guest stars as Ben, a Marine veteran now employed by the VHA and Alison's new love interest.
Additional Season 4 guest stars include Russell Hornsby (Grimm), Christopher Meyer (The Fosters), Amy Irving (Yentl) and Phoebe Tonkin (The Vampire Diaries).
Writers Sarah Treem (House of Cards, In Treatment) and Hagai Levi (In Treatment) created the series. Treem, also the showrunner, and Levi serve as executive producers. Jessica Rhoades is an executive producer on Season 4.