unfolds with all the mounting tension of an expert thriller , 
(ROOT (S (VP (VBZ unfolds) (PP (IN with) (NP (NP (PDT all) (DT the) (VBG mounting) (NN tension)) (PP (IN of) (NP (DT an) (NN expert) (NN thriller)))))) (, ,)))
(ROOT (S (VP (VBZ ) (PP (IN ) (NP (NP (PDT ) (DT ) (VBG ) (NN )) (PP (IN ) (NP (DT ) (NN ) (NN )))))) (, )))