Playwright and performer Tim Crouch is featured in An Oak Tree, a play about loss, suggestion and the power of the mind. Crouch is one of two performers in the play and he will be joined by an actor who has neither seen nor read the play they are about to be in. The story they will tell on stage will be as new to that actor as it is to the audience. The Obie-Award winning play will be presented at 8 p.m. in Leeds Theatre.