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
剧情就是一部片子的主线，就是这部影片的灵魂，如果一部片子没有一个好的主线，无疑这必定会是一部烂片。因为我们无法真正的去捕捉这部剧或是这部电影要传达给观众是什么，或是他想通过这部片子反映一个什么道理。
恐怖派对沙滩导演以自身的传统美学功底，对电影的写实艺术特性也有精深的理解和把握，他特别擅以生动的细节描绘人物的内心活动，并调动电影的各种艺术元素为塑造人物服务。
作为一门艺术，不仅要有优秀的故事和表演，还需要具备出色的技术表现。摄影、音效、音乐和特效等方面的表现都能够提升电影的观赏价值。技术的精湛与细腻能够帮助电影更好地传达情感和故事，增强观众的观影体验。
