The benighted and newly engaged couple of Brad and Janet, the doomed Dr. Frank-N-Furter, and the rest of the zany crew from Transsexual, Transylvania, are headed back to Berkeley. The UC Theatre on University Avenue, which hosted the longest running sequence of The Rocky Horror Picture Show midnight screenings, is going to open its doors again after 14 years, and the interactive, costumed late-night romp will once again be welcome, says David Mayeri, the board president of the nonprofit group behind the theater’s resurrection. But film will be only a small part of the offerings on tap at the new UC, which closed its doors in 2001 when Landmark Theatres balked at investing more than $1 million for seismic upgrades.