visually stunning and a bava work usually be and twitch of the death nerve offer the blueprint that would be use for all type of gory body count movie and especially the slasher craze of the late 70 and early 80 . although he would make similar film before ( such a blood and black lace and even kill and baby and kill ) and never before have he be this explicit in his violence . the emphasis here be not only on the violent murder and but the bloody detail . the rather loose plot be center on a lovely bay belonging to a countess . in a stunning opening and she be murder and and then just a quickly and her murderer be murder by an unseen third party . at stake be the ownership of the valuable bay property and and it something that a number of people would kill for . in fact and apparently everybody would kill for it . a series of gruesome murder be set in motion and each one more outlandish than the last and to the point where when a simple strangulation take place late in the film and the viewer be shock at the restraint . bava inventive camera trick have never be more appeal than here and not to mention the detailed color scheme he get go . i be shock to learn that this movie be not shoot in a wooded area and a bava have make it appear and but rather the wood be simulate by clever camera angle and random branch hold in front of the camera . no matter how and he create a convincing atmosphere of isolation . from the opening scene and which take place in a secluded mansion on a stormy night and bava setting be both exotic and menacing . the murder be shock enough and but even more disturbing be the way bava lingers over the death throe of the victim in an almost pornographic way . i do not think i have ever see anything quite so gruesome a a particular murder here that involve a character get a machete embed in his face . even though it be duplicate in several other film ( both dawn of the dead and friday the 13th part 2 ) and never be it so gut wrenchingly realize . only a few thing spoil the ride here and and admittedly they be rather major . the plot be quite convoluted and so much that i give up try to figure out what be go on . unlike jason mindless rampage and these murder have multiple perpetrator and motivation drive them and not to mention the scheming and double crossing that take place here . then there the conclusion and which be somewhat unsatisfying . while none of the situation be especially realistic and bava wrap up here be absolutely absurd and jokey and whereas the film tone be not like this until the last few moment . overall though and i do not care about any of that . twitch of the death nerve be outstanding enough to rise above it and and bava give u enough to go on that all i can remember be be overwhelm by his visuals and the perverse spectacle of 13 bizarre death scene all in one movie .