I'm not sure what I was expecting from Heretic, but it certainly wasn't deep theological discourse and intense religious diatribe courtesy of Hugh Grant. Not that I have a problem with that: when Grant's character, Mr. Reed, is challenging the doctrines of organised religion, the film is actually very engaging and frequently funny, the actor putting in a marvellously offbeat performance, Reed frequently making a lot of sense. Of course, this is a horror film, so even though a lot of what Grant's character says seems logical, the extremes he eventually goes to to prove his point are not at all reasonable.
Chloe East and Sophie Thatcher play Mormon missionaries who pay Mr. Reed a visit with the hope of converting him to their religion. Reed, however, has his own sinister agenda. What follows is an intense game of cat and mouse, the missionaries desperately trying to reason with their host while trying to find a way to escape from his home.
The film's strongest scenes are those in the first half of the film, in which Reed disquietingly questions the girls' beliefs while positing plausible alternatives - Grant is both affable and subtly menacing. Much of the first hour is simply conversation between Reed and the missionaries, and yet it is superbly unsettling, hinting at the man's craziness without going over the top. The latter half of the film is slightly less effective, visceral horror replacing the verbal dread, but it is still entertaining, and the film closes leaving the viewer with plenty of food for thought.
7/10.
