Related Clues:

• Sharp-witted
• Like the verb 'to be'
• Really spooky
• Like all primes but one
• ''They're ---!''
• Lacking a match
• Atypical
• Like most Serling stories
• Like Halloween sounds
• Switch setting
• Quite unusual
• Unmatched, as socks
• Like a King story
• Like 'The Twilight Zone'
• Out of the ordinary