dour and moody and petulant and very masculine and unsociable loner abattoir worker marcos ( a fine and low key and creepily nonchalant performance by vincente parra ) and his peevish and unhappy girlfriend ( the lovely emma cohen ) take a ride in a taxi one fateful night . the irritable cab driver toss them out when they start make out in the back of his taxi . marcos and the cabbie have an altercation which result in the cabbie be kill . marcos girlfriend want to tell the cop . marcos and who distrustful of authority due to his lowly work class social status and throttle his girlfriend in a fit of pique . pretty soon marcos become extremely paranoid and begin to kill every last person who suspect him of be a homicidal maniac ( marcos even whack his own brother with a wrench ) . marcos strike up an uneasy friendship with an earnest and but suspicious gay neighbor . thing get even more tense . meanwhile and marcos chop up the corps reside in his spartan and squalid rathole abode and disposes of the body part by incinerate them in the slaughterhouse furnace . a grave and gruesome and exceedingly unnerving and disconcert depiction of how severe self loathing and one miserably meager station in life can feasibly drive you murderously around the bend ( marcos register strongly a a hauntingly sullen and scarily twisted proletarian anti hero ) and this dark and stark and deeply disturbing and harrowingly plausible psychological horror portrait of everyday gratuitous violence and repress sexuality ( there an edgy air of homo eroticism apparent in the relationship between marcos and his meddlesome neighbor ) and and seethe and volatile little guy angst make for a very queasy and unsettling viewing experience . the late and great eloy de la iglesia taut and austere and fiercely humorless and deliberate direction and ably assist by raul artigot grainy and gloriously unadorned no frill cinematography and fernando g. morcillo spare and spooky and nerve jangling score and occasional outburst of hideously graphic and genuinely shock violence and gradual pacing and an unsparingly solemn tone and and properly subdue naturalistic acting from the uniformly solid cast and create a frightfully squirmy and sweaty suffocating gloom doom atmosphere which ultimately deliver one hell of a potent and linger kick you in the gut wallop . anchor bay typically up to par dvd offer a nice widescreen presentation with the trailer a the sole extra .