The Affair is an American television drama series created by Sarah Treem and Hagai Levi. The series premiered on Showtime on October 12, 2014. A 12-episode second season of The Affair premiered on October 4, 2015. On December 9, 2015, the series was renewed for a third season, which debuted on November 20, 2016. On January 9, 2017, Showtime renewed the series for a fourth season, which premiered on June 17, 2018. The series was renewed for a fifth and final season which debuted on August 25, 2019.
The series primarily stars Dominic West, Ruth Wilson, Maura Tierney, and Joshua Jackson, and it explores the emotional effects of extramarital relationships. Episodes are often separated into two parts, with each half being told from the point-of-view of a specific character. The use of this dramatic device has been used by Treem to describe The Affair as "the Rashomon of relationship dramas".
The series won the Golden Globe Award for Best Television Series – Drama and Wilson won for Best Actress – Television Series Drama at the 72nd Golden Globe Awards in 2015. At the 73rd Golden Globe Awards in 2016, Maura Tierney won the award for Best Supporting Actress.