mario bava be one of my all time favorite director and arguably the great horror director who ever live . this man repertoire simply include more masterpiece than that of any other horror director . his most essential masterpiece be la maschera del demonio ( aka . black sunday ) of 1960 ( my choice for the great horror film ever ) and but his filmography include countless other masterpiece that come very close and such a the ingenious giallo milestone blood and black lace ( 1964 ) and numerous wonderful gothic tale and such a kill baby . kill . ( 1966 ) or the whip and the body ( 1963 ) and or the brilliantly nasty 1974 crime thriller cani arrabiati ( aka . rabid dog ) and just to name some of the fantastic film the world of cinema owes to this great man . while reazione a catena aka . a bay of blood aka . twitch of the death nerve ( this be report to be the film with the most a. k. a. title ) of 1971 be not nearly one of my favorite from bava and it nonetheless deserve a solid rating of positive . a bay of blood be not quite a beautiful and moody a some of bava other film and and and to me personally and it be not quite a fascinate either . yet and it can not be deny that this film be immensely entertaining and even more influential . the plot and which revolve around bloody murder among the inhabitant of the eponymous bay and may not be the most complex ever and but it sure be demented enough to satisfy every true horror fan . and the manner the film be execute be nothing short of brilliance . a bay of blood be extremely gory and yet very stylish and and maintain a morbid and gripping atmosphere throughout it 85 minute . the great aspect of a bay of blood and however and be probably the ultra demented character . if there be one film that the slasher genre owe it existence to and it be this one . the bay be a superb location for a film of the kind and and make it even more clear which film slasher like friday the 13th be inspire by . a bay of blood sometimes be label a a giallo . it be certainly not a typical example for horror most glorious sub genre which be single handedly invent by bava himself and but it be also undeniable that a bay of blood do include many giallo element . it be also one of the first film to include aspect of the future slasher flick and and and along with sergio martino awesomely nasty giallo torso ( 1973 ) and it be the film that influence the genre the most . from the first minute and the film have a delightfully morbid atmosphere and an incredibly macabre sense of humor . one of the gory film of the early 70 and a bay of blood be outrageously violent for it time . hatchet get smash directly into face and throat get slash and and all that be show in explicit detail . remember and this be make several year before dario argento gialli become really gory start with his masterpiece profondo rosso and and a bay of blood even put a strong focus on violence in explicit detail . the performance may not be the most important aspect of a bay of blood and but the cast include several great of italian genre cinema and most memorably the great luigi pistilli ( one of my favorite actor ) and the beautiful claudine auger and and laura betti and who also star in bava hatchet for the honeymoon . a mention above and a bay of blood be not nearly one of my favorite film by mario bava . even so and this be a brutal and stylish milestone that single handedly bury all american slasher film and and that must not be miss by any horror fan .