The show consists of two parts, the second being a "reenactment of the Nativity crime" when the Magi's gift of gold must have been stolen since with it Mary and Joseph "should have been able to afford a room anywhere in Bethlehem."
The first part was fairly funny but the selection of audience members to assist in the reenactment and dressing them with "donated" materials for costumes is the highlight of the show. Sister obviously has an encyclopedic knowledge of doctrine, saints, etc. and puts it to good use interacting with the audience.
I'll definitely keep this show in mind for a Christmas gift in the future.