剧情介绍：　　Troubledbyboutsofsleepwalkinganddisturbingnightmares,graduatestudentSarahFostergoestoheruniversitysleepresearchcenterforhelp.Butwhenshewakesupafterherfirstnightofbeingmonitored,theworldshelivesinseemstohavechangedinsubtle,Twilight-Zone-esquewaysaaa