Brain Dead ★★★½

Saw this when it first came out but completely forgot everything about it, so tonight's screening was like seeing it for the first time. Initially, I was turned off at how much it appeared to be little more than a bargain basement Re-Animator riff, but once Bill Pullman's Martin sticks his knife into Bud Cort's Halsey, the film warps into a whole 'nother mindfuck.