adjective satellite (s)

• continually recurring to the mind(adj.all)

  Example:
  Haunting memories.
  The cathedral organ and the distant voices have a haunting beauty.
  

  Synonym:
  persistent
  

  source: wordnet30
• having a deeply disquieting or disturbing effect(adj.all)

  Example:
  From two handsome and talented young men to two haunting horrors of disintegration.
  

  source: wordnet30