Seventeen years after slaughtering all but one member of a family, a vicious serial killer known only as "The Sandman" awaits execution. But first, his jailers allow a minister to visit the killer to give him last rites, unaware that the minister is a voodoo priest and an ally of the condemned prisoner. The priest places a hex on the Sandman so that when he is executed, his soul migrates into a new body made of sand. To sever his ties with his former life and achieve absolute power, the sandman must find and kill a man named Griffin, the sole survivor of the last family murdered by the killer. 在1978年,當葛利芬爸大衛斯還是七歲小男孩時,一個殺死那地區內全部以有著七歲男童的家庭之連環殺手闖入他家,殺了它父母後且正要向葛利芬下手之際,警察及時趕到並逮捕了兇手,小葛利芬才逃過一劫.十七年後,那"沙"人兇手正要被處決時,一個神秘的牧師到監獄去探望他,並給了那兇手超自然魔力,在他被處決後,即變成了真正的"沙人",並追殺葛利芬,要完成他當年未完成的使命....
