muddled to be an effectively chilling guilty pleasure 
(ROOT (VP (VBN muddled) (S (VP (TO to) (VP (VB be) (NP (DT an) (ADJP (RB effectively) (VBG chilling)) (JJ guilty) (NN pleasure)))))))
(ROOT (VP (VBN ) (S (VP (TO ) (VP (VB ) (NP (DT ) (ADJP (RB ) (VBG )) (JJ ) (NN )))))))