Showtime’s ‘The Affair’: Go Beneath the Sheets of the “Dark” Romantic Drama (Exclusive)

This Sunday, Showtime will premiere an in-depth first look at its new drama The Affair.

Focusing on the psychological effects of an extramarital affair between a married woman Alison (Ruth Wilson) and an older married man Noah (Dominic West) in Montauk, the new hourlong series promises to take a deep dive into the complexities of long-term relationships. Joshua Jackson and Maura Tierney also star.

Right off the bat, there's a clear physical attraction between Alison and Noah. As Wilson explains in the three-minute promo exclusive to The Hollywood Reporter, Noah represents "an escapism" that Alison is attracted to.

As the series goes on, The Affair further explores the consequences of "what happens when two honest, good people can't control their feelings for each other" and how that decision "affects everyone around them," says West, warning, "It gets pretty sinister." Wilson adds that the show shines a light on "the dark undershades" of the town.

One of the biggest stars of the series is the setting, with its lazy-summer East Coast feel. "Montauk means something different to everybody who is a part of our story," Jackson says.

The Affair premieres Sunday, Oct. 12, at 10 p.m. ET/PT on Showtime.

Twitter: @insidethetube

Philiana Ng