There is a very unique theatrical experience awaiting you at the Windy City Playhouse, 3014 W. Irving Park Road, one of Chicago’s newest theater venues, where its current production of “Southern Gothic” has again been extended by popular demand to Dec. 9.If you think that the staging at the Lookingglass Theatre at Water Tower, with its water-filled pools, hanging ropes and daring gymnastics is unusual, you should check out this latest version of “immersive theater” by Leslie Liautaud, directed …