Murder In A Blue World (aka Una Gota De Sangre Para Morir Amando) (1973)

In a futuristic society where people are glued to their televisions and a blue drink (hence the film's title), which may or may not act as a sedative, is the beverage of choice, black leather clad thugs with red helmets break into homes and brutally beat and rape their victims. A young nurse (Sue Lyon in her best film role since LOLITA) is a humanitarian by day and a psychotic serial killer by night. Directed by Eloy De La Iglesia, this weird and bloody Spanish exploitation film is hugely influenced by Kubrick's A CLOCKWORK ORANGE but without its intellectual pretensions. I must confess  I enjoyed it much more. The film has the feel of an Italian giallo. The director's homage to Kubrick has some characters watching A CLOCKWORK ORANGE on television just before a gang breaks into their home to terrorize them and he has Sue Lyon reading Nabokov's LOLITA and she listens to Strauss waltzes (2001 A SPACE ODYSSEY) and what Kubrick  suggests at the end of CLOCKWORK, Iglesia makes much more graphic and explicit. The futurist set design is quite good and is the work of Eduardo Torre De La Fuente. With Jean Sorel (BELLE DE JOUR) and Christopher Mitchum (Robert's kid).