Related Clues:

• "Rocky Horror" fans et al
• Groups breaking away
• Divisions; dissenting cliques
• Bugs, not at home, parties?
• Religious spinoffs
• The Quakers and others
• Bunches of believers
• Breakaway branches
• Fanatical groups
• Niche sects
• Hardcore sects
• Factions of faithful
• Sunnis and Shiites, e.g
• Obsessive groups
• School spin-offs