Tonmai18岁生日那天,收到了人生中第一份生日礼物,是死去姐姐Thannam的旧卧室。Tonmai在卧室见到了Thannam,他发现,只有他可以看到Thannam,可以和Thannam说话。而Thannam不记得自己是怎么自杀的,Tonmai决心查出当年发生的事情。。Four friends come to an old, abandoned factory in Lower Silesia, where their friend went missing a year ago. While trying to unravel the mystery of his disappearance, they discover the terrifying experiments conducted in the factory.。