In The Affair, Showtime’s mesmerizing new original series, Dominic West stars as a writer who strays from his family life after meeting an alluring new woman, played by co-star Ruth Wilson. Erotic intrigue leads to deceit, and guilt gives way to darkness as layers of complex narratives—entwined between two marriages—emerge. Psychological tension never reverberated so enticingly. The Affair also stars Maura Tierney and Joshua Jackson. Watch the Series Premiere of The Affair now or catch it this Sunday, Oct. 12 at 10/9c, only on Showtime.