Wednesday: 7:00 P.M. Faith

Gapped, American Eagled and Abercrombie & Fitched to the teeth, teens emerge from cars packed four to a seat, flirting and yelling, heading for the back of senior Katie Sonderman's tidy white house on Greeley Avenue. Within half an hour, the 24-ft. by 26-ft. Sonderman family room contains--just barely--about one-ninth of the Webster Groves High School student body. Suddenly an overhead projector flips on, two amplified acoustic guitars chime in and 160 youthful voices scream, "Here's a story! It's sad but true! About a girl that I once knew!... Keep away from Runaround Sue!"

It is ebullient; it is deafening. "It's...