The AffairHow did we get here
We took the slow way
Do you love me
What am I supposed to say

Those haunting, heart-tugging lyrics from the song "Walls" by the band Stars plays over the new trailer for Showtime's Golden Globe-winning "The Affair." The exchange between the male and female singer captures the mood of the teaser, which shows us that Noah (Dominic West) and Alison (Ruth Wilson) continue their affair as their respective marriages crumble.

Watch the trailer.

This season will double down on the drama, literally, as the show expands from two points of view to four. We'll see more from Noah's ex Helen (Maura Tierney) and Alison's ex Cole (Joshua Jackson).

As Noah and Alison navigate their relationship, they also have to contend with the police's ongoing investigation of Scott Lockhart's death. Noah claims he's innocent, but if he is, who did kill Scott?

"The Affair" season 2 premieres this fall.

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