While the hot rodders and motorcyclists are having a rock-and-roll beach party, a barrel of radioactive material is unloaded from a passing ship, plunges to the bottom and splits against a jagged rock. A black liquid oozes out and covers a shapeless mass on the ocean floor, which suddenly moves and becomes an encrusted vicious monster. Soon there are several monsters and they must have human blood to survive. Tina is the first victim, and football hero Hank Green and airhead Elaine Gavin enlist the aid of her science-professor father, Dr. Gavin, to solve and capture the killer. Not working fast enough to prevent the attack on twenty teen-agers at a slumber party nor the killing of three girl motorists, Dr. Gavin finds an arm lost by one of the monsters and discovers that only sodium will destroy the monsters whose composition is mostly water. Can they gather enough salt in southern California to put an end to this horror
观众对《恐怖派对沙滩》的评价两极分化，一方面认为剧情离谱、演员表现惊艳，另一方面认为编剧粗制滥造、剧情不合理。
它是一部值得一看的电影，通过其故事和表现手法，让观众反思剧内向观众表达的意义和人性的复杂！
这是一部非常特别的影片，没有大开大合的剧情，没有博人眼球的类型元素，没有贯穿到底的故事脉络。像是一杯温开水，看似平淡，却喝起来十分解渴。
说真的，《恐怖派对沙滩》看完后我真的是久久不能平静！因为这部影片确实带给人的震撼太大了！不论是剧情节奏，还是剧情尺度，都让人不敢相信这是美国剧的水平。
充满了各种自相矛盾的观点，以及对人性的各种颠覆解读，看一遍绝对不过瘾。你每刷一遍，都能对人性有新的认知。
