Homeless and invisible - the Twins are constantly struggling to survive. Sister is a ticking time bomb| her screams are loud. Brother, on the other hand, doesn't speak, but rather screams inward.。故事以二战末期为背景,讲述五人美军小队奉命守护一座法国古堡。不料城堡除了残余的敌军,一股超自然的邪恶力量也正在蓄势待发。小队众人也面临着比战场上更加残酷的威胁。。