SM is in a play called Three Days of Rain by Richard Greenberg. There are only three actors in the play, which is why in the previous and following photos you only see the three of them. The play is dreary and full of shouting...okay, maybe not exactly all that...but I'm not used to hearing SM shout, and he does a lot of that in this play.
As you can probably guess from the photos, the three characters are in a triangle relationship. In the first act you meet a brother, sister and best friend. During this act they confront each other about certain parts of their past, trying to understand why they are where they are...and how the past has shaped their futures.