Arjo Atayde’s haunted, steely stoicism is an adequate anchor to hold ‘Topakk’ on. There are plenty of fist-pumping viscera to be found, but the film’s lack of grasp on its chaos hurts it more often than not.

A tense, cerebral, yet crowd-pleasing chamber piece, ‘Heretic’ stacks tantalizing theological disquisitions and moments of primal terror on top of each other to create one entertaining thrill ride.