monologue about a monologue

CILLIAN MURPHY AS THOMAS MAGILL IN ENDA WALSH'S MISTERMAN AT THE NATIONAL THEATRE

Last night we saw Misterman at the National Theatre and I came away still thinking about it.  It's a one man play but by no means is it a classic monologue - Thomas Magill is caught in an endless recycling of his relationships in Innisfree using tapes, recording devices and his own reproductions of conversations with Innisfree locals.  An unbelievably intense, piercing and thoroughly devoted performance by Cillian Murphy.  Enda Walsh's script and direction I enjoyed (though that seems the wrong word - perhaps appreciated?).  Some of Thomas' pieces in which he was caught up in his/the town's spiritual development were perhaps a bit drawn out, but that was of a piece with the character. 

However, I'm still not sure I've properly processed it all.  Ever have that feeling that you've just scratched the surface?