the second of director jeff lieberman trilogy of perfect b thriller and the others be squirm ( 1976 ) and just before dawn ( 1981 ) and be a clever shocker give some interesting spin . a young man stand accuse of murder when one of his friend go crazy during a party . he flee the police and discovers that other similar killing have take place and that a brand of lsd be behind it . but what can he do to stop the power of blue sunshine . highly stylish and off beat psychological thriller may just be the best testament to lieberman film make talent . lieberman give this film a haunting atmosphere and moment pure strangeness and and startle violence . lieberman story be a weird tale and tense with mystery and power by an original concept . charles gross provide a beautiful and truly odd musical score that complement the mood of the film perfectly . the cast be quite good as well . zalman king be the best a the film rather unlikely hero . blue sunshine have become a bit of an underground classic and much like the other film of lieberman and and it rightfully should be a classic . for those seek an original horror thriller with some weird twist and you would not find good than this . out of .