You just know it's going to be one of those nights. She's on the change. I'm on my period. Hormonal teenager and neurotic mother under one terraced roof? My father's got a word for it:Tonypandemonium. Tonypandemonium is the first play by critically acclaimed and Dylan Thomas Prize winner Rachel Trezise. The play debuted in October 2013 on the occasion of the centenary year of the Park & Dare Theatre in Treorchy.