is an exercise in chilling style , and twohy films the sub , inside and out , with an eye on preserving a sense of mystery 
(ROOT (S (VP (VBZ is) (NP (NP (DT an) (NN exercise)) (PP (IN in) (NP (VBG chilling) (NN style))))) (, ,) (CC and) (S (NP (NN twohy)) (VP (VBZ films) (NP (DT the) (NN sub)) (, ,) (ADVP (RB inside) (CC and) (RB out)) (, ,) (PP (IN with) (NP (NP (DT an) (NN eye)) (PP (IN on) (S (VP (VBG preserving) (NP (NP (DT a) (NN sense)) (PP (IN of) (NP (NN mystery)))))))))))))
(ROOT (S (VP (VBZ ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (VBG ) (NN ))))) (, ) (CC ) (S (NP (NN )) (VP (VBZ ) (NP (DT ) (NN )) (, ) (ADVP (RB ) (CC ) (RB )) (, ) (PP (IN ) (NP (NP (DT ) (NN )) (PP (IN ) (S (VP (VBG ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (NN )))))))))))))